./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 23ca06a4d1d66eab783b29fc3ce31114eee62eb7d17a2452b84e2d73b8d92cfa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-22 08:59:47,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 08:59:47,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2023-11-22 08:59:47,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 08:59:47,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 08:59:47,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 08:59:47,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 08:59:47,456 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 08:59:47,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 08:59:47,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 08:59:47,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 08:59:47,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 08:59:47,467 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 08:59:47,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 08:59:47,469 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 08:59:47,469 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 08:59:47,470 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 08:59:47,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 08:59:47,471 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-22 08:59:47,471 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-22 08:59:47,472 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-22 08:59:47,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 08:59:47,472 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-22 08:59:47,473 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-22 08:59:47,473 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 08:59:47,474 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 08:59:47,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 08:59:47,475 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 08:59:47,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 08:59:47,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 08:59:47,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 08:59:47,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 08:59:47,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 08:59:47,477 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 08:59:47,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 08:59:47,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 08:59:47,478 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-22 08:59:47,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-22 08:59:47,478 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-22 08:59:47,479 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-22 08:59:47,479 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_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ca06a4d1d66eab783b29fc3ce31114eee62eb7d17a2452b84e2d73b8d92cfa [2023-11-22 08:59:47,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 08:59:47,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 08:59:47,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 08:59:47,806 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 08:59:47,807 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 08:59:47,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-22 08:59:50,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 08:59:51,138 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 08:59:51,139 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-22 08:59:51,151 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/data/8cb019319/2a865a40080e4d02a5b8752d5daed013/FLAG0b3bc761d [2023-11-22 08:59:51,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/data/8cb019319/2a865a40080e4d02a5b8752d5daed013 [2023-11-22 08:59:51,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 08:59:51,167 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 08:59:51,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 08:59:51,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 08:59:51,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 08:59:51,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:59:51" (1/1) ... [2023-11-22 08:59:51,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5639117f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:51, skipping insertion in model container [2023-11-22 08:59:51,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:59:51" (1/1) ... [2023-11-22 08:59:51,208 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 08:59:51,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 08:59:51,416 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 08:59:51,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@66657a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:51, skipping insertion in model container [2023-11-22 08:59:51,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 08:59:51,419 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-22 08:59:51,421 INFO L158 Benchmark]: Toolchain (without parser) took 253.30ms. Allocated memory is still 163.6MB. Free memory was 129.2MB in the beginning and 118.4MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-22 08:59:51,422 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 08:59:51,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.78ms. Allocated memory is still 163.6MB. Free memory was 128.5MB in the beginning and 118.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-22 08:59:51,424 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.78ms. Allocated memory is still 163.6MB. Free memory was 128.5MB in the beginning and 118.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 102]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 23ca06a4d1d66eab783b29fc3ce31114eee62eb7d17a2452b84e2d73b8d92cfa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-22 08:59:54,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 08:59:54,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2023-11-22 08:59:54,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 08:59:54,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 08:59:54,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 08:59:54,164 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 08:59:54,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 08:59:54,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 08:59:54,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 08:59:54,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 08:59:54,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 08:59:54,173 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 08:59:54,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 08:59:54,176 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 08:59:54,176 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 08:59:54,177 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 08:59:54,177 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 08:59:54,178 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-22 08:59:54,178 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-22 08:59:54,179 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-22 08:59:54,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 08:59:54,180 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-22 08:59:54,180 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-22 08:59:54,180 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-22 08:59:54,181 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-22 08:59:54,181 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 08:59:54,182 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 08:59:54,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 08:59:54,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 08:59:54,185 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 08:59:54,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 08:59:54,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 08:59:54,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 08:59:54,186 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 08:59:54,187 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-22 08:59:54,187 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-22 08:59:54,187 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 08:59:54,187 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-22 08:59:54,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-22 08:59:54,189 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-22 08:59:54,189 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-22 08:59:54,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 08:59:54,190 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_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ca06a4d1d66eab783b29fc3ce31114eee62eb7d17a2452b84e2d73b8d92cfa [2023-11-22 08:59:54,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 08:59:54,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 08:59:54,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 08:59:54,675 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 08:59:54,676 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 08:59:54,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-22 08:59:57,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 08:59:58,128 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 08:59:58,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-22 08:59:58,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/data/8a0dac905/d3c3fa2ec80f4e8ab2158d67c278c500/FLAGfb4eed82e [2023-11-22 08:59:58,164 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/data/8a0dac905/d3c3fa2ec80f4e8ab2158d67c278c500 [2023-11-22 08:59:58,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 08:59:58,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 08:59:58,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 08:59:58,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 08:59:58,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 08:59:58,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a9747e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58, skipping insertion in model container [2023-11-22 08:59:58,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,218 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 08:59:58,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 08:59:58,503 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-22 08:59:58,519 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 08:59:58,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 08:59:58,570 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 08:59:58,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 08:59:58,643 INFO L206 MainTranslator]: Completed translation [2023-11-22 08:59:58,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58 WrapperNode [2023-11-22 08:59:58,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 08:59:58,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 08:59:58,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 08:59:58,646 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 08:59:58,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,731 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 199 [2023-11-22 08:59:58,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 08:59:58,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 08:59:58,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 08:59:58,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 08:59:58,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 08:59:58,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 08:59:58,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 08:59:58,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 08:59:58,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (1/1) ... [2023-11-22 08:59:58,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 08:59:58,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/z3 [2023-11-22 08:59:58,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 08:59:58,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 08:59:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 08:59:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-22 08:59:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 08:59:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-22 08:59:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-22 08:59:58,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-22 08:59:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-22 08:59:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-22 08:59:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 08:59:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 08:59:58,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 08:59:58,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 08:59:58,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-22 08:59:58,917 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 08:59:59,082 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 08:59:59,083 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 08:59:59,709 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 09:00:00,134 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 09:00:00,135 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-22 09:00:00,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:00:00 BoogieIcfgContainer [2023-11-22 09:00:00,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 09:00:00,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 09:00:00,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 09:00:00,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 09:00:00,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:59:58" (1/3) ... [2023-11-22 09:00:00,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f885191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:00:00, skipping insertion in model container [2023-11-22 09:00:00,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:58" (2/3) ... [2023-11-22 09:00:00,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f885191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:00:00, skipping insertion in model container [2023-11-22 09:00:00,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:00:00" (3/3) ... [2023-11-22 09:00:00,150 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-11-22 09:00:00,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 09:00:00,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-22 09:00:00,171 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-22 09:00:00,271 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-22 09:00:00,322 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 09:00:00,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-22 09:00:00,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/z3 [2023-11-22 09:00:00,328 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-22 09:00:00,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-22 09:00:00,389 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-22 09:00:00,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2023-11-22 09:00:00,409 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;@40199846, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 09:00:00,410 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-22 09:00:01,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:01,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:01,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1946730051, now seen corresponding path program 1 times [2023-11-22 09:00:01,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:01,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383339226] [2023-11-22 09:00:01,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:01,889 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 09:00:01,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:01,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:01,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:02,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 09:00:02,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:02,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 09:00:02,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:00:02,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:02,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383339226] [2023-11-22 09:00:02,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383339226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:00:02,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:00:02,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 09:00:02,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144894759] [2023-11-22 09:00:02,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:00:02,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 09:00:02,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:02,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 09:00:02,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 09:00:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:02,214 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:02,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 09:00:02,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:02,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:02,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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)] Forceful destruction successful, exit code 0 [2023-11-22 09:00:02,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:02,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:02,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:02,563 INFO L85 PathProgramCache]: Analyzing trace with hash -429795776, now seen corresponding path program 1 times [2023-11-22 09:00:02,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:02,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348599120] [2023-11-22 09:00:02,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:02,564 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 09:00:02,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:02,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:02,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:02,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 09:00:02,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 09:00:02,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 09:00:02,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:02,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348599120] [2023-11-22 09:00:02,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348599120] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:02,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:02,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-22 09:00:02,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922338309] [2023-11-22 09:00:02,802 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:02,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 09:00:02,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:02,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 09:00:02,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-22 09:00:02,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:02,806 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:02,807 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 09:00:02,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:02,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:03,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:03,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:03,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:03,233 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:03,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:03,234 INFO L85 PathProgramCache]: Analyzing trace with hash -253953609, now seen corresponding path program 2 times [2023-11-22 09:00:03,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:03,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430281930] [2023-11-22 09:00:03,235 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:00:03,235 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 09:00:03,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:03,237 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:03,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:03,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 09:00:03,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:00:03,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 09:00:03,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:03,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2023-11-22 09:00:03,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:03,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:03,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:03,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-22 09:00:03,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:03,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:03,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:03,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:03,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:03,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-22 09:00:03,637 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-22 09:00:03,637 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 09:00:03,709 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-22 09:00:03,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:00:03,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:03,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430281930] [2023-11-22 09:00:03,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430281930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:00:03,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:00:03,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 09:00:03,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883546701] [2023-11-22 09:00:03,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:00:03,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 09:00:03,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:03,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 09:00:03,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 09:00:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:03,719 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:03,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:00:03,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:03,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:03,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:05,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:05,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:05,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:05,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:06,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:06,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:06,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:06,022 INFO L85 PathProgramCache]: Analyzing trace with hash -253953608, now seen corresponding path program 1 times [2023-11-22 09:00:06,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:06,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990445384] [2023-11-22 09:00:06,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:06,023 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 09:00:06,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:06,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:06,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:06,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-22 09:00:06,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:06,343 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-22 09:00:06,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-22 09:00:06,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:06,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990445384] [2023-11-22 09:00:06,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990445384] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:06,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:06,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-22 09:00:06,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585270601] [2023-11-22 09:00:06,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:06,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 09:00:06,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:06,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 09:00:06,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-22 09:00:06,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:06,528 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:06,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 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 09:00:06,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:06,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:06,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:06,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:06,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:06,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:06,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:07,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:07,124 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:07,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:07,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1877446987, now seen corresponding path program 2 times [2023-11-22 09:00:07,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:07,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634592082] [2023-11-22 09:00:07,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:00:07,127 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 09:00:07,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:07,128 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:07,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:07,299 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 09:00:07,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:00:07,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-22 09:00:07,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:07,344 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 09:00:07,353 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 09:00:07,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:07,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:07,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:07,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-22 09:00:07,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:07,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:07,426 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 09:00:07,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:07,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-22 09:00:07,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:07,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:07,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:07,596 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 09:00:07,611 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-22 09:00:07,612 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 09:00:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:07,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:00:07,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:07,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634592082] [2023-11-22 09:00:07,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634592082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:00:07,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:00:07,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 09:00:07,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325512680] [2023-11-22 09:00:07,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:00:07,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 09:00:07,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:07,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 09:00:07,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-22 09:00:07,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:07,785 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:07,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) 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 09:00:07,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:07,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:07,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:07,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:07,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:08,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:08,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:08,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:08,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:08,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:09,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:09,055 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:09,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:09,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1958357099, now seen corresponding path program 1 times [2023-11-22 09:00:09,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:09,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72378555] [2023-11-22 09:00:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:09,056 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 09:00:09,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:09,059 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:09,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:09,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-22 09:00:09,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:09,504 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 09:00:09,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-22 09:00:09,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:09,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:09,532 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 09:00:09,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:09,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-22 09:00:09,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:09,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:09,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:09,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-22 09:00:09,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:09,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:09,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:09,731 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 09:00:09,753 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-22 09:00:09,753 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 09:00:09,962 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:09,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:10,783 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:10,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:10,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72378555] [2023-11-22 09:00:10,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72378555] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:10,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:10,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2023-11-22 09:00:10,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164432835] [2023-11-22 09:00:10,785 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:10,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 09:00:10,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:10,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 09:00:10,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-22 09:00:10,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:10,790 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:10,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 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 09:00:10,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:10,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:10,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:10,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:10,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:10,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:11,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:11,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:11,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 09:00:11,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:11,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:11,760 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:11,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:11,760 INFO L85 PathProgramCache]: Analyzing trace with hash 692262581, now seen corresponding path program 2 times [2023-11-22 09:00:11,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:11,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309939610] [2023-11-22 09:00:11,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:00:11,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:00:11,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:11,769 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:11,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:11,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 09:00:11,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:00:11,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-22 09:00:11,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:11,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2023-11-22 09:00:11,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-22 09:00:12,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:12,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:12,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:12,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:12,022 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 09:00:12,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:12,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-22 09:00:12,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:12,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:12,058 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 09:00:12,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:12,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-22 09:00:12,221 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-22 09:00:12,221 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 09:00:12,242 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-22 09:00:12,242 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 09:00:12,964 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-22 09:00:12,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-22 09:00:16,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:16,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309939610] [2023-11-22 09:00:16,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309939610] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:16,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:16,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2023-11-22 09:00:16,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300712033] [2023-11-22 09:00:16,402 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:16,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 09:00:16,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:16,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 09:00:16,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-22 09:00:16,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:16,405 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:16,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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 09:00:16,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:16,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:16,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:16,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:16,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:16,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-22 09:00:16,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:18,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:18,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:18,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:18,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:18,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:18,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 09:00:18,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:18,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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)] Forceful destruction successful, exit code 0 [2023-11-22 09:00:18,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:18,827 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:18,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:18,827 INFO L85 PathProgramCache]: Analyzing trace with hash -947500295, now seen corresponding path program 1 times [2023-11-22 09:00:18,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:18,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439788083] [2023-11-22 09:00:18,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:18,828 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 09:00:18,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:18,829 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:18,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:19,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 09:00:19,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:19,243 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 09:00:19,339 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-22 09:00:19,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:00:19,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:19,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439788083] [2023-11-22 09:00:19,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439788083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:00:19,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:00:19,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 09:00:19,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722443862] [2023-11-22 09:00:19,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:00:19,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 09:00:19,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:19,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 09:00:19,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 09:00:19,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:19,344 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:19,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:00:19,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:19,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:19,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:19,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:19,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:19,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-22 09:00:19,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:19,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 09:00:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:19,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:19,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:19,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:19,685 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:19,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:19,685 INFO L85 PathProgramCache]: Analyzing trace with hash -947500294, now seen corresponding path program 1 times [2023-11-22 09:00:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:19,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798210642] [2023-11-22 09:00:19,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:19,686 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 09:00:19,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:19,687 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:19,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:20,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-22 09:00:20,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:20,030 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 09:00:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:20,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:21,216 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:21,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:21,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798210642] [2023-11-22 09:00:21,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798210642] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:21,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:21,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-22 09:00:21,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17266735] [2023-11-22 09:00:21,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:21,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-22 09:00:21,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:21,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-22 09:00:21,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-22 09:00:21,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:21,220 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:21,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 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 09:00:21,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:21,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:21,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:21,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:21,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:21,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-22 09:00:21,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:21,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:21,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 09:00:22,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:22,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:22,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 09:00:22,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:22,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:22,555 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:22,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:22,556 INFO L85 PathProgramCache]: Analyzing trace with hash -455567846, now seen corresponding path program 2 times [2023-11-22 09:00:22,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:22,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317221535] [2023-11-22 09:00:22,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:00:22,556 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 09:00:22,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:22,557 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:22,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:22,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 09:00:22,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:00:22,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-22 09:00:22,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:22,995 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 09:00:23,380 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 5 proven. 35 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:23,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:24,343 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:24,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:24,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317221535] [2023-11-22 09:00:24,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317221535] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:24,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:24,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2023-11-22 09:00:24,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716962245] [2023-11-22 09:00:24,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:24,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-22 09:00:24,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:24,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-22 09:00:24,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-22 09:00:24,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:24,348 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:24,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 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 09:00:24,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:24,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:24,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:24,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:24,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:24,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-22 09:00:24,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:24,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:24,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-22 09:00:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 09:00:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 09:00:27,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 09:00:27,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2023-11-22 09:00:27,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2023-11-22 09:00:27,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 4 remaining) [2023-11-22 09:00:27,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 4 remaining) [2023-11-22 09:00:27,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:27,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:27,722 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1] [2023-11-22 09:00:27,731 INFO L307 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork1 was SAFE,SAFE,SAFE,SAFE (1/3) [2023-11-22 09:00:27,738 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 09:00:27,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-22 09:00:27,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/z3 [2023-11-22 09:00:27,739 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-22 09:00:27,744 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-22 09:00:27,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ======== [2023-11-22 09:00:27,744 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;@40199846, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 09:00:27,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-22 09:00:27,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2023-11-22 09:00:28,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:28,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:28,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1657832224, now seen corresponding path program 1 times [2023-11-22 09:00:28,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:28,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926550237] [2023-11-22 09:00:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:28,520 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 09:00:28,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:28,521 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:28,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (14)] Waiting until timeout for monitored process [2023-11-22 09:00:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:28,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 09:00:28,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:28,636 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 09:00:28,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:00:28,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:28,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926550237] [2023-11-22 09:00:28,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926550237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:00:28,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:00:28,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 09:00:28,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651261182] [2023-11-22 09:00:28,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:00:28,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 09:00:28,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:28,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 09:00:28,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 09:00:28,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:28,642 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:28,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 09:00:28,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:28,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:28,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (14)] Forceful destruction successful, exit code 0 [2023-11-22 09:00:28,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:28,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:28,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:28,940 INFO L85 PathProgramCache]: Analyzing trace with hash 2014096899, now seen corresponding path program 1 times [2023-11-22 09:00:28,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:28,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060592262] [2023-11-22 09:00:28,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:28,940 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 09:00:28,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:28,941 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:28,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:29,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 09:00:29,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 09:00:29,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 09:00:29,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:29,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060592262] [2023-11-22 09:00:29,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060592262] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:29,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:29,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-22 09:00:29,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390619165] [2023-11-22 09:00:29,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:29,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 09:00:29,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:29,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 09:00:29,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-22 09:00:29,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:29,142 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:29,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:00:29,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:29,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:29,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:29,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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)] Ended with exit code 0 [2023-11-22 09:00:29,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:29,528 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:29,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:29,528 INFO L85 PathProgramCache]: Analyzing trace with hash 2100172268, now seen corresponding path program 2 times [2023-11-22 09:00:29,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:29,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412014204] [2023-11-22 09:00:29,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:00:29,529 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 09:00:29,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:29,530 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:29,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:29,654 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 09:00:29,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:00:29,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 09:00:29,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:29,663 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 09:00:29,707 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-22 09:00:29,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:00:29,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:29,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412014204] [2023-11-22 09:00:29,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412014204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:00:29,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:00:29,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 09:00:29,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528533576] [2023-11-22 09:00:29,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:00:29,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 09:00:29,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:29,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 09:00:29,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 09:00:29,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:29,710 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:29,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 09:00:29,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:29,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:29,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:30,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:30,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:30,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:30,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:31,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:31,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:31,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:31,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2100172269, now seen corresponding path program 1 times [2023-11-22 09:00:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:31,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334633841] [2023-11-22 09:00:31,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:31,089 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 09:00:31,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:31,090 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:31,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:31,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-22 09:00:31,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:31,352 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-22 09:00:31,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:31,542 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-22 09:00:31,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:31,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334633841] [2023-11-22 09:00:31,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334633841] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:31,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:31,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-22 09:00:31,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842630254] [2023-11-22 09:00:31,543 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:31,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 09:00:31,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:31,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 09:00:31,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-22 09:00:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:31,545 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:31,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:00:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:31,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:31,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:31,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:31,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:31,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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)] Forceful destruction successful, exit code 0 [2023-11-22 09:00:32,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:32,109 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:32,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash 479070736, now seen corresponding path program 2 times [2023-11-22 09:00:32,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:32,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484877602] [2023-11-22 09:00:32,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:00:32,110 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 09:00:32,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:32,112 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:32,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (18)] Waiting until timeout for monitored process [2023-11-22 09:00:32,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 09:00:32,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:00:32,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-22 09:00:32,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:32,238 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 09:00:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:32,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:00:32,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:32,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484877602] [2023-11-22 09:00:32,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484877602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:00:32,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:00:32,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 09:00:32,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722509533] [2023-11-22 09:00:32,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:00:32,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 09:00:32,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:32,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 09:00:32,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-22 09:00:32,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:32,390 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:32,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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 09:00:32,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:32,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:32,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:32,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:32,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:32,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:32,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:32,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:32,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:32,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (18)] Forceful destruction successful, exit code 0 [2023-11-22 09:00:32,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:32,840 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:32,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:32,841 INFO L85 PathProgramCache]: Analyzing trace with hash -179333263, now seen corresponding path program 1 times [2023-11-22 09:00:32,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:32,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725480702] [2023-11-22 09:00:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:32,841 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 09:00:32,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:32,842 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:32,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (19)] Waiting until timeout for monitored process [2023-11-22 09:00:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:33,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-22 09:00:33,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:33,145 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 09:00:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:33,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:33,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:33,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725480702] [2023-11-22 09:00:33,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725480702] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:33,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:33,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-22 09:00:33,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236231274] [2023-11-22 09:00:33,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:33,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 09:00:33,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:33,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 09:00:33,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-22 09:00:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:33,694 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:33,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:00:33,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:33,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:33,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:33,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:33,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:33,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:34,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:34,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:34,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (19)] Forceful destruction successful, exit code 0 [2023-11-22 09:00:34,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:34,439 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:34,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:34,439 INFO L85 PathProgramCache]: Analyzing trace with hash -359386416, now seen corresponding path program 2 times [2023-11-22 09:00:34,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:34,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694263325] [2023-11-22 09:00:34,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:00:34,440 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 09:00:34,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:34,441 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:34,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (20)] Waiting until timeout for monitored process [2023-11-22 09:00:34,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 09:00:34,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:00:34,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-22 09:00:34,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:34,614 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 09:00:34,622 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 09:00:34,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:34,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:34,644 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 09:00:34,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:34,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-22 09:00:34,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:34,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:34,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:34,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-22 09:00:34,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:34,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:34,815 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-22 09:00:34,815 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 09:00:34,822 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 12 treesize of output 14 [2023-11-22 09:00:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-22 09:00:35,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-22 09:00:38,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:38,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694263325] [2023-11-22 09:00:38,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694263325] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:38,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:38,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2023-11-22 09:00:38,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54140085] [2023-11-22 09:00:38,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:38,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 09:00:38,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:38,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 09:00:38,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-22 09:00:38,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:38,639 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:38,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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 09:00:38,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:38,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:38,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:38,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:38,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:38,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:38,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:39,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:39,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:39,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (20)] Forceful destruction successful, exit code 0 [2023-11-22 09:00:39,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:39,880 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:39,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:39,880 INFO L85 PathProgramCache]: Analyzing trace with hash -11593131, now seen corresponding path program 1 times [2023-11-22 09:00:39,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:39,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690905528] [2023-11-22 09:00:39,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:39,881 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 09:00:39,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:39,882 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:39,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (21)] Waiting until timeout for monitored process [2023-11-22 09:00:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:40,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 09:00:40,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:40,239 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-22 09:00:40,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:00:40,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:40,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690905528] [2023-11-22 09:00:40,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690905528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:00:40,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:00:40,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 09:00:40,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099947781] [2023-11-22 09:00:40,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:00:40,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 09:00:40,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:40,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 09:00:40,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 09:00:40,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:40,244 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:40,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:00:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:40,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (21)] Forceful destruction successful, exit code 0 [2023-11-22 09:00:40,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:40,562 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:00:40,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:00:40,563 INFO L85 PathProgramCache]: Analyzing trace with hash -11593130, now seen corresponding path program 1 times [2023-11-22 09:00:40,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:00:40,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547976069] [2023-11-22 09:00:40,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:00:40,563 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 09:00:40,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:00:40,564 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 09:00:40,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a2b8a9-1ae7-4668-a7ab-73faba4bce67/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 (22)] Waiting until timeout for monitored process [2023-11-22 09:00:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:00:41,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-22 09:00:41,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:00:41,032 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 09:00:41,038 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 09:00:41,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:41,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:41,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:41,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:41,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:41,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-22 09:00:41,095 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 09:00:41,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:41,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-22 09:00:41,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:41,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-22 09:00:41,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:00:41,233 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 09:00:41,243 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-22 09:00:41,244 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 09:00:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:41,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:00:44,571 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-22 09:00:44,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:00:44,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547976069] [2023-11-22 09:00:44,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547976069] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:00:44,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:00:44,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2023-11-22 09:00:44,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586675671] [2023-11-22 09:00:44,572 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:00:44,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-22 09:00:44,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:00:44,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-22 09:00:44,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=183, Unknown=1, NotChecked=0, Total=240 [2023-11-22 09:00:44,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:00:44,574 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:00:44,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 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 09:00:44,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:44,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:44,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:00:44,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:44,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:00:44,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:00:44,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:00:44,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:00:44,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.