./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 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_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am --witnessprinter.witness.filename witness.graphml --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 c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 06:50:25,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 06:50:25,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 06:50:25,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 06:50:25,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 06:50:25,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 06:50:25,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 06:50:25,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 06:50:25,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 06:50:25,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 06:50:25,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 06:50:25,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 06:50:25,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 06:50:25,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 06:50:25,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 06:50:25,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 06:50:25,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 06:50:25,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 06:50:25,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 06:50:25,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 06:50:25,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 06:50:25,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 06:50:25,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 06:50:25,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 06:50:25,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 06:50:25,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 06:50:25,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 06:50:25,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 06:50:25,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 06:50:25,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 06:50:25,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 06:50:25,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 06:50:25,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 06:50:25,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 06:50:25,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 06:50:25,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 06:50:25,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 06:50:25,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 06:50:25,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 06:50:25,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 06:50:25,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 06:50:25,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-23 06:50:25,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 06:50:25,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 06:50:25,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 06:50:25,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 06:50:25,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 06:50:25,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 06:50:25,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 06:50:25,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 06:50:25,993 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 06:50:25,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 06:50:25,993 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 06:50:25,994 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 06:50:25,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 06:50:25,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 06:50:25,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 06:50:25,995 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 06:50:25,995 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 06:50:25,995 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 06:50:25,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 06:50:25,996 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 06:50:25,996 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 06:50:25,996 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 06:50:25,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 06:50:25,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 06:50:25,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 06:50:25,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:50:25,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 06:50:25,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 06:50:25,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 06:50:25,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 06:50:25,998 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-23 06:50:25,999 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-23 06:50:25,999 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-23 06:50:25,999 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-23 06:50:25,999 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-23 06:50:26,000 INFO L138 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_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 [2022-11-23 06:50:26,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 06:50:26,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 06:50:26,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 06:50:26,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 06:50:26,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 06:50:26,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-11-23 06:50:29,746 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 06:50:29,997 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 06:50:29,998 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-11-23 06:50:30,005 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/data/586a8d389/2e093f4d11fe4a4bbac4cbc51696f9ff/FLAGc4acef096 [2022-11-23 06:50:30,020 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/data/586a8d389/2e093f4d11fe4a4bbac4cbc51696f9ff [2022-11-23 06:50:30,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 06:50:30,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 06:50:30,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 06:50:30,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 06:50:30,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 06:50:30,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:50:30" (1/1) ... [2022-11-23 06:50:30,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d6c180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:30, skipping insertion in model container [2022-11-23 06:50:30,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:50:30" (1/1) ... [2022-11-23 06:50:30,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 06:50:30,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:50:30,273 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-11-23 06:50:30,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:50:30,294 ERROR L326 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) [2022-11-23 06:50:30,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@234c64f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:30, skipping insertion in model container [2022-11-23 06:50:30,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 06:50:30,295 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-23 06:50:30,297 INFO L158 Benchmark]: Toolchain (without parser) took 272.33ms. Allocated memory is still 174.1MB. Free memory was 142.6MB in the beginning and 132.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 06:50:30,298 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 138.4MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 06:50:30,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.77ms. Allocated memory is still 174.1MB. Free memory was 142.2MB in the beginning and 132.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 06:50:30,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 138.4MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.77ms. Allocated memory is still 174.1MB. Free memory was 142.2MB in the beginning and 132.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 144]: 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_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am --witnessprinter.witness.filename witness.graphml --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 c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 06:50:33,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 06:50:33,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 06:50:33,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 06:50:33,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 06:50:33,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 06:50:33,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 06:50:33,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 06:50:33,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 06:50:33,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 06:50:33,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 06:50:33,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 06:50:33,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 06:50:33,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 06:50:33,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 06:50:33,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 06:50:33,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 06:50:33,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 06:50:33,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 06:50:33,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 06:50:33,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 06:50:33,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 06:50:33,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 06:50:33,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 06:50:33,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 06:50:33,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 06:50:33,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 06:50:33,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 06:50:33,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 06:50:33,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 06:50:33,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 06:50:33,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 06:50:33,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 06:50:33,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 06:50:33,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 06:50:33,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 06:50:33,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 06:50:33,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 06:50:33,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 06:50:33,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 06:50:33,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 06:50:33,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2022-11-23 06:50:33,365 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 06:50:33,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 06:50:33,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 06:50:33,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 06:50:33,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 06:50:33,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 06:50:33,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 06:50:33,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 06:50:33,370 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 06:50:33,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 06:50:33,372 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 06:50:33,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 06:50:33,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 06:50:33,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 06:50:33,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 06:50:33,374 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 06:50:33,374 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 06:50:33,374 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 06:50:33,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 06:50:33,375 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 06:50:33,375 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 06:50:33,375 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 06:50:33,376 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 06:50:33,376 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 06:50:33,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 06:50:33,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 06:50:33,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 06:50:33,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:50:33,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 06:50:33,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 06:50:33,378 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 06:50:33,379 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 06:50:33,379 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-23 06:50:33,379 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-23 06:50:33,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-23 06:50:33,380 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-23 06:50:33,381 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-23 06:50:33,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 06:50:33,381 INFO L138 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_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 [2022-11-23 06:50:33,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 06:50:33,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 06:50:33,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 06:50:33,866 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 06:50:33,867 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 06:50:33,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-11-23 06:50:37,674 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 06:50:37,982 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 06:50:37,983 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-11-23 06:50:37,991 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/data/3e2b3ea97/3b5348673d504a78934da12699344d2b/FLAG88077650e [2022-11-23 06:50:38,009 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/data/3e2b3ea97/3b5348673d504a78934da12699344d2b [2022-11-23 06:50:38,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 06:50:38,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 06:50:38,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 06:50:38,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 06:50:38,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 06:50:38,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2297d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38, skipping insertion in model container [2022-11-23 06:50:38,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 06:50:38,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:50:38,254 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-11-23 06:50:38,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:50:38,279 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-23 06:50:38,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:50:38,307 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-11-23 06:50:38,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:50:38,324 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 06:50:38,366 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-11-23 06:50:38,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:50:38,395 INFO L208 MainTranslator]: Completed translation [2022-11-23 06:50:38,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38 WrapperNode [2022-11-23 06:50:38,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 06:50:38,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 06:50:38,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 06:50:38,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 06:50:38,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,454 INFO L138 Inliner]: procedures = 28, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 250 [2022-11-23 06:50:38,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 06:50:38,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 06:50:38,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 06:50:38,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 06:50:38,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,541 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 06:50:38,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 06:50:38,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 06:50:38,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 06:50:38,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (1/1) ... [2022-11-23 06:50:38,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:50:38,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:50:38,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 06:50:38,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 06:50:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 06:50:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 06:50:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 06:50:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 06:50:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 06:50:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 06:50:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 06:50:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 06:50:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 06:50:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 06:50:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 06:50:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 06:50:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 06:50:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 06:50:38,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 06:50:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 06:50:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 06:50:38,675 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 06:50:38,830 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 06:50:38,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 06:50:39,877 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 06:50:40,204 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 06:50:40,204 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-23 06:50:40,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:50:40 BoogieIcfgContainer [2022-11-23 06:50:40,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 06:50:40,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 06:50:40,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 06:50:40,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 06:50:40,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:50:38" (1/3) ... [2022-11-23 06:50:40,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3188e6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:50:40, skipping insertion in model container [2022-11-23 06:50:40,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:38" (2/3) ... [2022-11-23 06:50:40,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3188e6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:50:40, skipping insertion in model container [2022-11-23 06:50:40,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:50:40" (3/3) ... [2022-11-23 06:50:40,223 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2022-11-23 06:50:40,249 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 06:50:40,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-23 06:50:40,249 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 06:50:40,418 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 06:50:40,498 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:50:40,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-23 06:50:40,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:50:40,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-23 06:50:40,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-23 06:50:40,596 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-23 06:50:40,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2022-11-23 06:50:40,622 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;@417cebc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:50:40,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 06:50:41,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:50:41,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:50:41,450 INFO L85 PathProgramCache]: Analyzing trace with hash 284519718, now seen corresponding path program 1 times [2022-11-23 06:50:41,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:50:41,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167186475] [2022-11-23 06:50:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:50:41,476 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 [2022-11-23 06:50:41,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:50:41,512 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:50:41,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:50:41,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 06:50:41,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:50:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:50:41,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:50:41,788 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:50:41,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167186475] [2022-11-23 06:50:41,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167186475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:50:41,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:50:41,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:50:41,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887796111] [2022-11-23 06:50:41,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:50:41,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 06:50:41,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:50:41,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 06:50:41,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 06:50:41,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:41,835 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:50:41,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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) [2022-11-23 06:50:41,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:41,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:41,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:42,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:50:42,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:50:42,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:50:42,114 INFO L85 PathProgramCache]: Analyzing trace with hash 288387641, now seen corresponding path program 1 times [2022-11-23 06:50:42,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:50:42,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854845091] [2022-11-23 06:50:42,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:50:42,115 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 [2022-11-23 06:50:42,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:50:42,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:50:42,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:50:42,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 06:50:42,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:50:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:50:42,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:50:42,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:50:42,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854845091] [2022-11-23 06:50:42,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854845091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:50:42,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:50:42,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:50:42,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397852837] [2022-11-23 06:50:42,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:50:42,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:50:42,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:50:42,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:50:42,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:50:42,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:42,601 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:50:42,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 59.5) internal successors, (119), 3 states have internal predecessors, (119), 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) [2022-11-23 06:50:42,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:42,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:44,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:50:44,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:44,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:50:44,815 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:50:44,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:50:44,816 INFO L85 PathProgramCache]: Analyzing trace with hash 258163783, now seen corresponding path program 1 times [2022-11-23 06:50:44,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:50:44,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607019537] [2022-11-23 06:50:44,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:50:44,817 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 [2022-11-23 06:50:44,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:50:44,822 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:50:44,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:50:45,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 06:50:45,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:50:45,114 INFO L350 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 [2022-11-23 06:50:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:50:45,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:50:45,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:50:45,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607019537] [2022-11-23 06:50:45,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607019537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:50:45,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:50:45,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 06:50:45,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710824141] [2022-11-23 06:50:45,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:50:45,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 06:50:45,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:50:45,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 06:50:45,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 06:50:45,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:45,284 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:50:45,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.0) internal successors, (132), 7 states have internal predecessors, (132), 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) [2022-11-23 06:50:45,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:45,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:50:45,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:47,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:47,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:50:47,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:50:47,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:47,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:50:47,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:50:47,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:50:47,618 INFO L85 PathProgramCache]: Analyzing trace with hash 258163784, now seen corresponding path program 1 times [2022-11-23 06:50:47,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:50:47,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250804023] [2022-11-23 06:50:47,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:50:47,619 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 [2022-11-23 06:50:47,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:50:47,622 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:50:47,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:50:47,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 06:50:47,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:50:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:50:48,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:50:48,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:50:48,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250804023] [2022-11-23 06:50:48,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250804023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:50:48,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:50:48,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 06:50:48,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272282929] [2022-11-23 06:50:48,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:50:48,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 06:50:48,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:50:48,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 06:50:48,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-23 06:50:48,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:48,767 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:50:48,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 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) [2022-11-23 06:50:48,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:48,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:50:48,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:50:48,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:50:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:50:51,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:50:51,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:52,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:50:52,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:50:52,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:50:52,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1575166493, now seen corresponding path program 1 times [2022-11-23 06:50:52,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:50:52,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809074368] [2022-11-23 06:50:52,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:50:52,081 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 [2022-11-23 06:50:52,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:50:52,082 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:50:52,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:50:52,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 06:50:52,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:50:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 06:50:52,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:50:52,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:50:52,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809074368] [2022-11-23 06:50:52,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809074368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:50:52,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:50:52,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 06:50:52,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155497050] [2022-11-23 06:50:52,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:50:52,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 06:50:52,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:50:52,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 06:50:52,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-23 06:50:52,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:52,903 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:50:52,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.545454545454545) internal successors, (138), 12 states have internal predecessors, (138), 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) [2022-11-23 06:50:52,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:52,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:50:52,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:50:52,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:50:52,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:54,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:54,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:50:54,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:50:54,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:50:54,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:50:54,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:55,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:50:55,124 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:50:55,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:50:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash 200939065, now seen corresponding path program 1 times [2022-11-23 06:50:55,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:50:55,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099606118] [2022-11-23 06:50:55,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:50:55,126 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 [2022-11-23 06:50:55,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:50:55,127 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:50:55,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:50:55,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 06:50:55,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:50:55,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 06:50:55,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:50:55,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:50:55,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099606118] [2022-11-23 06:50:55,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099606118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:50:55,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:50:55,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:50:55,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669557855] [2022-11-23 06:50:55,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:50:55,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:50:55,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:50:55,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:50:55,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:50:55,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:55,340 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:50:55,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 64.0) internal successors, (128), 3 states have internal predecessors, (128), 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) [2022-11-23 06:50:55,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:55,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:50:55,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:50:55,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:50:55,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:50:55,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:57,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:57,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:50:57,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:50:57,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:50:57,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:50:57,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:50:57,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:57,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:50:57,767 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:50:57,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:50:57,767 INFO L85 PathProgramCache]: Analyzing trace with hash 200939066, now seen corresponding path program 1 times [2022-11-23 06:50:57,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:50:57,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223333066] [2022-11-23 06:50:57,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:50:57,768 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 [2022-11-23 06:50:57,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:50:57,770 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:50:57,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:50:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:50:57,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 06:50:57,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:51:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:51:00,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:51:00,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2022-11-23 06:51:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:51:08,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:51:08,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223333066] [2022-11-23 06:51:08,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223333066] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:51:08,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 06:51:08,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 37 [2022-11-23 06:51:08,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625088993] [2022-11-23 06:51:08,749 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 06:51:08,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-23 06:51:08,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:51:08,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-23 06:51:08,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1151, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 06:51:08,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:51:08,754 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:51:08,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 5.8108108108108105) internal successors, (215), 38 states have internal predecessors, (215), 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) [2022-11-23 06:51:08,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:51:08,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:51:08,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:51:08,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:51:08,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:51:08,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:51:08,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:52:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:52:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:52:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:52:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:52:00,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:52:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:52:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-23 06:52:00,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-11-23 06:52:00,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:52:00,897 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:52:00,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:52:00,898 INFO L85 PathProgramCache]: Analyzing trace with hash -387678364, now seen corresponding path program 1 times [2022-11-23 06:52:00,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:52:00,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462760758] [2022-11-23 06:52:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:52:00,899 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 [2022-11-23 06:52:00,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:52:00,900 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:52:00,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:52:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:52:01,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-23 06:52:01,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:52:01,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 06:52:02,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 06:52:02,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:52:11,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 06:52:11,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:52:11,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462760758] [2022-11-23 06:52:11,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462760758] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:52:11,170 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 06:52:11,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 33 [2022-11-23 06:52:11,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572018257] [2022-11-23 06:52:11,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 06:52:11,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-23 06:52:11,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:52:11,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-23 06:52:11,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 06:52:11,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:52:11,175 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:52:11,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.333333333333333) internal successors, (209), 34 states have internal predecessors, (209), 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) [2022-11-23 06:52:11,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:52:11,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:52:11,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:52:11,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:52:11,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:52:11,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:52:11,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-11-23 06:52:11,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:52:28,785 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 90 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:52:38,276 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 96 DAG size of output: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:52:54,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:53:06,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:53:25,896 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 94 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:53:42,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:53:55,235 WARN L233 SmtUtils]: Spent 10.53s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:53:59,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:54:01,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:01,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:01,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:54:01,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:54:01,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:54:01,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:01,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-23 06:54:01,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-23 06:54:01,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:54:01,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:54:01,521 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:54:01,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:54:01,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1754194135, now seen corresponding path program 1 times [2022-11-23 06:54:01,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:54:01,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529375665] [2022-11-23 06:54:01,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:54:01,522 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 [2022-11-23 06:54:01,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:54:01,523 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:54:01,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:54:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:54:01,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 06:54:01,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:54:02,288 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 06:54:02,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 19 [2022-11-23 06:54:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 06:54:02,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:54:02,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:54:02,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529375665] [2022-11-23 06:54:02,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529375665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:54:02,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:54:02,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 06:54:02,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222072558] [2022-11-23 06:54:02,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:54:02,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 06:54:02,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:54:02,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 06:54:02,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 06:54:02,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:02,395 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:54:02,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 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) [2022-11-23 06:54:02,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:02,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:02,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:54:02,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:54:02,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:54:02,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:02,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-11-23 06:54:02,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-23 06:54:02,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:54:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:54:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:54:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-23 06:54:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-23 06:54:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 06:54:06,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:54:06,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:54:06,289 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:54:06,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:54:06,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1666782407, now seen corresponding path program 1 times [2022-11-23 06:54:06,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:54:06,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095775367] [2022-11-23 06:54:06,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:54:06,301 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 [2022-11-23 06:54:06,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:54:06,301 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:54:06,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:54:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:54:06,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-23 06:54:06,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:54:09,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 06:54:09,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:54:14,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 06:54:14,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:54:14,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095775367] [2022-11-23 06:54:14,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095775367] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:54:14,582 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 06:54:14,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 29 [2022-11-23 06:54:14,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030545304] [2022-11-23 06:54:14,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 06:54:14,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-23 06:54:14,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:54:14,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-23 06:54:14,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2022-11-23 06:54:14,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:14,586 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:54:14,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 8.862068965517242) internal successors, (257), 30 states have internal predecessors, (257), 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) [2022-11-23 06:54:14,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:14,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:14,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:54:14,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:54:14,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:54:14,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:14,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-11-23 06:54:14,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-23 06:54:14,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-23 06:54:14,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:37,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:37,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:54:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:54:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:54:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-23 06:54:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-23 06:54:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 06:54:37,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-23 06:54:37,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:54:37,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:54:37,999 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:54:37,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:54:37,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2142241902, now seen corresponding path program 2 times [2022-11-23 06:54:38,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:54:38,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043045311] [2022-11-23 06:54:38,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 06:54:38,000 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 [2022-11-23 06:54:38,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:54:38,005 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:54:38,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-23 06:54:38,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 06:54:38,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 06:54:38,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 06:54:38,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:54:38,847 INFO L350 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 [2022-11-23 06:54:38,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 06:54:40,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 06:54:40,228 INFO L350 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 16 [2022-11-23 06:54:40,261 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-23 06:54:40,262 INFO L350 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 [2022-11-23 06:54:41,213 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 06:54:41,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:54:41,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:54:41,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043045311] [2022-11-23 06:54:41,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043045311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:54:41,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:54:41,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 06:54:41,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289373488] [2022-11-23 06:54:41,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:54:41,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 06:54:41,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:54:41,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 06:54:41,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-23 06:54:41,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:41,217 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:54:41,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.866666666666667) internal successors, (148), 16 states have internal predecessors, (148), 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) [2022-11-23 06:54:41,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:41,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:41,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:54:41,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:54:41,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:54:41,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:41,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-11-23 06:54:41,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-23 06:54:41,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-23 06:54:41,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-11-23 06:54:41,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:54:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:54:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 06:54:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:54:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-23 06:54:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-23 06:54:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 06:54:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-23 06:54:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 06:54:47,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2022-11-23 06:54:47,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2022-11-23 06:54:47,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 4 remaining) [2022-11-23 06:54:47,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 4 remaining) [2022-11-23 06:54:47,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-23 06:54:47,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:54:47,579 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 06:54:47,587 INFO L307 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE (1/4) [2022-11-23 06:54:47,592 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:54:47,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-23 06:54:47,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:54:47,594 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-23 06:54:47,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2022-11-23 06:54:47,603 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-23 06:54:47,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2022-11-23 06:54:47,604 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;@417cebc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:54:47,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 06:54:47,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:54:47,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:54:47,861 INFO L85 PathProgramCache]: Analyzing trace with hash 471530867, now seen corresponding path program 1 times [2022-11-23 06:54:47,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:54:47,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292833223] [2022-11-23 06:54:47,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:54:47,862 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 [2022-11-23 06:54:47,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:54:47,870 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:54:47,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:54:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:54:48,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 06:54:48,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:54:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:54:48,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:54:48,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:54:48,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292833223] [2022-11-23 06:54:48,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292833223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:54:48,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:54:48,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:54:48,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039891839] [2022-11-23 06:54:48,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:54:48,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 06:54:48,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:54:48,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 06:54:48,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 06:54:48,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:48,021 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:54:48,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 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) [2022-11-23 06:54:48,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:48,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-23 06:54:48,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:54:48,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:54:48,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:54:48,248 INFO L85 PathProgramCache]: Analyzing trace with hash 327497695, now seen corresponding path program 1 times [2022-11-23 06:54:48,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:54:48,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679349963] [2022-11-23 06:54:48,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:54:48,249 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 [2022-11-23 06:54:48,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:54:48,251 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:54:48,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:54:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:54:48,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 06:54:48,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:54:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:54:49,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:54:49,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:54:49,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679349963] [2022-11-23 06:54:49,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679349963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:54:49,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:54:49,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 06:54:49,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98882341] [2022-11-23 06:54:49,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:54:49,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 06:54:49,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:54:49,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 06:54:49,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-23 06:54:49,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:49,515 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:54:49,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 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) [2022-11-23 06:54:49,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:49,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:51,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:51,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:54:51,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-11-23 06:54:51,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:54:51,981 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:54:51,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:54:51,981 INFO L85 PathProgramCache]: Analyzing trace with hash -429092300, now seen corresponding path program 1 times [2022-11-23 06:54:51,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:54:51,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170608513] [2022-11-23 06:54:51,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:54:51,982 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 [2022-11-23 06:54:51,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:54:51,983 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:54:51,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:54:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:54:52,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 06:54:52,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:54:52,223 INFO L350 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 [2022-11-23 06:54:52,475 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 06:54:52,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-23 06:54:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 06:54:52,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:54:52,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:54:52,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170608513] [2022-11-23 06:54:52,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170608513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:54:52,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:54:52,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 06:54:52,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530789283] [2022-11-23 06:54:52,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:54:52,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 06:54:52,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:54:52,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 06:54:52,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 06:54:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:52,602 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:54:52,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 06:54:52,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:52,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:54:52,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:53,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:54:53,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:54:53,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 06:54:53,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:54:53,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:54:53,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:54:53,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:54:53,940 INFO L85 PathProgramCache]: Analyzing trace with hash -429092299, now seen corresponding path program 1 times [2022-11-23 06:54:53,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:54:53,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905534082] [2022-11-23 06:54:53,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:54:53,941 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 [2022-11-23 06:54:53,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:54:53,943 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 06:54:53,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 06:54:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:54:54,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-23 06:54:54,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:54:54,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 06:54:54,793 INFO L350 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 [2022-11-23 06:54:56,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 06:54:56,842 INFO L350 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 16 [2022-11-23 06:54:56,871 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-23 06:54:56,872 INFO L350 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 [2022-11-23 06:54:57,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:54:57,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:55:29,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 06:55:32,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:55:32,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:55:32,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905534082] [2022-11-23 06:55:32,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905534082] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:55:32,425 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 06:55:32,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 35 [2022-11-23 06:55:32,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635102012] [2022-11-23 06:55:32,425 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 06:55:32,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-23 06:55:32,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:55:32,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-23 06:55:32,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1048, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 06:55:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:32,428 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:55:32,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.428571428571429) internal successors, (190), 36 states have internal predecessors, (190), 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) [2022-11-23 06:55:32,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:32,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-23 06:55:32,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-23 06:55:32,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:56:14,247 WARN L233 SmtUtils]: Spent 41.16s on a formula simplification. DAG size of input: 116 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:56:15,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:56:42,890 WARN L233 SmtUtils]: Spent 26.17s on a formula simplification. DAG size of input: 102 DAG size of output: 101 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:56:44,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:56:47,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:56:50,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:56:52,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:57:09,071 WARN L233 SmtUtils]: Spent 14.21s on a formula simplification. DAG size of input: 88 DAG size of output: 87 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:57:10,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:57:53,280 WARN L233 SmtUtils]: Spent 32.11s on a formula simplification. DAG size of input: 118 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:58:11,729 WARN L233 SmtUtils]: Spent 16.57s on a formula simplification. DAG size of input: 76 DAG size of output: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:58:37,757 WARN L233 SmtUtils]: Spent 20.20s on a formula simplification. DAG size of input: 125 DAG size of output: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:59:12,128 WARN L233 SmtUtils]: Spent 28.92s on a formula simplification. DAG size of input: 121 DAG size of output: 102 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:59:33,060 WARN L233 SmtUtils]: Spent 17.64s on a formula simplification. DAG size of input: 107 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:59:45,609 WARN L233 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 105 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:00:19,625 WARN L233 SmtUtils]: Spent 7.91s on a formula simplification. DAG size of input: 57 DAG size of output: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:00:34,200 WARN L233 SmtUtils]: Spent 11.81s on a formula simplification. DAG size of input: 72 DAG size of output: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:01:29,213 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:01:35,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 07:01:37,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 07:01:40,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 07:01:46,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 07:01:53,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 07:02:05,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 07:02:09,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 07:02:44,508 WARN L233 SmtUtils]: Spent 14.53s on a formula simplification. DAG size of input: 105 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:03:13,835 WARN L233 SmtUtils]: Spent 24.02s on a formula simplification. DAG size of input: 119 DAG size of output: 100 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:03:30,433 WARN L233 SmtUtils]: Spent 12.74s on a formula simplification. DAG size of input: 105 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:03:51,210 WARN L233 SmtUtils]: Spent 15.28s on a formula simplification. DAG size of input: 103 DAG size of output: 84 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:04:02,647 WARN L233 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 89 DAG size of output: 70 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:04:05,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:05,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 07:04:05,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 07:04:05,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-23 07:04:05,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2022-11-23 07:04:05,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2022-11-23 07:04:05,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 4 remaining) [2022-11-23 07:04:05,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 4 remaining) [2022-11-23 07:04:05,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 07:04:05,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 07:04:05,440 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 07:04:05,440 INFO L307 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork1 was SAFE,SAFE,SAFE,SAFE (2/4) [2022-11-23 07:04:05,443 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 07:04:05,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-23 07:04:05,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 07:04:05,444 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-23 07:04:05,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (19)] Waiting until timeout for monitored process [2022-11-23 07:04:05,448 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-23 07:04:05,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-23 07:04:05,449 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;@417cebc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 07:04:05,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-23 07:04:05,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-23 07:04:05,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:04:05,838 INFO L85 PathProgramCache]: Analyzing trace with hash 950078378, now seen corresponding path program 1 times [2022-11-23 07:04:05,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:04:05,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458995618] [2022-11-23 07:04:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 07:04:05,839 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 [2022-11-23 07:04:05,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:04:05,850 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 07:04:05,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 07:04:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 07:04:06,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 07:04:06,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:04:06,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:04:06,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 07:04:06,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:04:06,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458995618] [2022-11-23 07:04:06,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458995618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 07:04:06,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 07:04:06,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 07:04:06,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645842909] [2022-11-23 07:04:06,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 07:04:06,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 07:04:06,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:04:06,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 07:04:06,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 07:04:06,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:06,018 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:04:06,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 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) [2022-11-23 07:04:06,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:06,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 07:04:06,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 07:04:06,395 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-23 07:04:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:04:06,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1158402509, now seen corresponding path program 1 times [2022-11-23 07:04:06,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:04:06,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229188758] [2022-11-23 07:04:06,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 07:04:06,396 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 [2022-11-23 07:04:06,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:04:06,397 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 07:04:06,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 07:04:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 07:04:06,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-23 07:04:06,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:04:13,830 INFO L321 Elim1Store]: treesize reduction 332, result has 0.3 percent of original size [2022-11-23 07:04:13,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 174 treesize of output 34 [2022-11-23 07:04:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:04:14,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 07:04:14,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:04:14,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229188758] [2022-11-23 07:04:14,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229188758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 07:04:14,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 07:04:14,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-23 07:04:14,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932630098] [2022-11-23 07:04:14,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 07:04:14,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-23 07:04:14,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:04:14,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-23 07:04:14,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2022-11-23 07:04:14,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:14,906 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:04:14,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.130434782608695) internal successors, (164), 23 states have internal predecessors, (164), 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) [2022-11-23 07:04:14,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:14,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:23,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 07:04:23,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:23,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:23,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 07:04:23,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 07:04:23,952 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-23 07:04:23,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:04:23,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1129851822, now seen corresponding path program 1 times [2022-11-23 07:04:23,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:04:23,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160772468] [2022-11-23 07:04:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 07:04:23,953 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 [2022-11-23 07:04:23,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:04:23,954 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 07:04:23,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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 [2022-11-23 07:04:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 07:04:24,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 07:04:24,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:04:25,851 INFO L321 Elim1Store]: treesize reduction 332, result has 0.3 percent of original size [2022-11-23 07:04:25,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 174 treesize of output 34 [2022-11-23 07:04:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:04:25,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 07:04:25,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:04:25,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160772468] [2022-11-23 07:04:25,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160772468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 07:04:25,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 07:04:25,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 07:04:25,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313452250] [2022-11-23 07:04:25,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 07:04:25,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 07:04:25,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:04:25,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 07:04:25,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 07:04:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:25,976 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:04:25,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 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) [2022-11-23 07:04:25,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:25,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:25,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:27,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:27,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-23 07:04:27,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 07:04:27,495 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-23 07:04:27,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:04:27,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2141257259, now seen corresponding path program 1 times [2022-11-23 07:04:27,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:04:27,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342547696] [2022-11-23 07:04:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 07:04:27,496 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 [2022-11-23 07:04:27,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:04:27,497 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 07:04:27,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-23 07:04:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 07:04:27,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 07:04:27,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:04:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:04:27,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 07:04:27,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:04:27,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342547696] [2022-11-23 07:04:27,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342547696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 07:04:27,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 07:04:27,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 07:04:27,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168991228] [2022-11-23 07:04:27,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 07:04:27,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 07:04:27,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:04:27,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 07:04:27,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 07:04:27,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:27,755 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:04:27,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 73.0) internal successors, (146), 3 states have internal predecessors, (146), 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) [2022-11-23 07:04:27,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:27,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:27,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:27,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:29,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-23 07:04:29,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 07:04:29,557 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-23 07:04:29,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:04:29,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2141257260, now seen corresponding path program 1 times [2022-11-23 07:04:29,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:04:29,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419061342] [2022-11-23 07:04:29,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 07:04:29,558 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 [2022-11-23 07:04:29,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:04:29,559 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 07:04:29,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-23 07:04:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 07:04:29,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 07:04:29,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:04:30,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:04:30,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 07:04:30,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:04:30,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419061342] [2022-11-23 07:04:30,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419061342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 07:04:30,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 07:04:30,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 07:04:30,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77576575] [2022-11-23 07:04:30,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 07:04:30,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 07:04:30,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:04:30,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 07:04:30,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 07:04:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:30,367 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:04:30,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 48.666666666666664) internal successors, (146), 4 states have internal predecessors, (146), 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) [2022-11-23 07:04:30,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:30,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:30,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:30,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:30,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:32,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:32,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:32,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:32,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:32,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-23 07:04:32,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 07:04:32,989 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-23 07:04:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:04:32,989 INFO L85 PathProgramCache]: Analyzing trace with hash 867166220, now seen corresponding path program 1 times [2022-11-23 07:04:32,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:04:32,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594381671] [2022-11-23 07:04:32,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 07:04:32,991 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 [2022-11-23 07:04:32,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:04:32,992 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 07:04:32,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-23 07:04:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 07:04:33,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 07:04:33,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:04:33,652 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 07:04:33,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 19 [2022-11-23 07:04:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:04:33,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 07:04:33,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:04:33,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594381671] [2022-11-23 07:04:33,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594381671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 07:04:33,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 07:04:33,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 07:04:33,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303417049] [2022-11-23 07:04:33,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 07:04:33,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 07:04:33,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:04:33,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 07:04:33,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 07:04:33,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:33,728 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:04:33,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 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) [2022-11-23 07:04:33,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:33,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:33,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:33,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:33,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:33,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:34,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:34,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:34,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:34,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:34,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:34,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 07:04:34,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-23 07:04:34,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 07:04:34,458 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-23 07:04:34,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:04:34,459 INFO L85 PathProgramCache]: Analyzing trace with hash 617356502, now seen corresponding path program 1 times [2022-11-23 07:04:34,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:04:34,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473621] [2022-11-23 07:04:34,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 07:04:34,460 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 [2022-11-23 07:04:34,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:04:34,460 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 07:04:34,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-23 07:04:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 07:04:34,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 07:04:34,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:04:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:04:34,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 07:04:34,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:04:34,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473621] [2022-11-23 07:04:34,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 07:04:34,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 07:04:34,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 07:04:34,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895272664] [2022-11-23 07:04:34,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 07:04:34,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 07:04:34,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:04:34,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 07:04:34,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 07:04:34,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:34,679 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:04:34,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 66.5) internal successors, (133), 3 states have internal predecessors, (133), 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) [2022-11-23 07:04:34,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:34,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:34,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:34,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:34,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:34,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-23 07:04:34,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:35,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:35,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 07:04:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:35,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-23 07:04:35,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 07:04:35,227 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-23 07:04:35,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:04:35,227 INFO L85 PathProgramCache]: Analyzing trace with hash 617356503, now seen corresponding path program 1 times [2022-11-23 07:04:35,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:04:35,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801996674] [2022-11-23 07:04:35,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 07:04:35,228 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 [2022-11-23 07:04:35,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:04:35,230 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 07:04:35,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-23 07:04:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 07:04:35,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 07:04:35,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:04:35,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:04:35,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 07:04:35,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:04:35,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801996674] [2022-11-23 07:04:35,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801996674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 07:04:35,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 07:04:35,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 07:04:35,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793773187] [2022-11-23 07:04:35,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 07:04:35,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 07:04:35,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:04:35,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 07:04:35,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 07:04:35,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:35,870 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:04:35,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 44.333333333333336) internal successors, (133), 4 states have internal predecessors, (133), 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) [2022-11-23 07:04:35,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:35,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:35,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:35,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:35,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:35,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-23 07:04:35,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:35,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:37,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:37,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 07:04:37,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:37,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:37,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-23 07:04:37,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 07:04:37,616 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-23 07:04:37,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:04:37,617 INFO L85 PathProgramCache]: Analyzing trace with hash -967494582, now seen corresponding path program 1 times [2022-11-23 07:04:37,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:04:37,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920223547] [2022-11-23 07:04:37,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 07:04:37,617 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 [2022-11-23 07:04:37,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:04:37,635 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 07:04:37,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-23 07:04:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 07:04:37,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 07:04:37,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:04:38,356 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 07:04:38,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 19 [2022-11-23 07:04:38,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:04:38,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 07:04:38,772 INFO L321 Elim1Store]: treesize reduction 210, result has 3.2 percent of original size [2022-11-23 07:04:38,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 91 treesize of output 28 [2022-11-23 07:04:39,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:04:39,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:04:39,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920223547] [2022-11-23 07:04:39,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920223547] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 07:04:39,269 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 07:04:39,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-23 07:04:39,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660433531] [2022-11-23 07:04:39,270 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 07:04:39,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 07:04:39,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:04:39,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 07:04:39,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 07:04:39,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:39,272 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:04:39,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.5) internal successors, (276), 8 states have internal predecessors, (276), 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) [2022-11-23 07:04:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-23 07:04:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:39,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:39,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:40,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:04:40,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 07:04:40,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:04:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 07:04:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:04:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 07:04:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 07:04:40,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-23 07:04:40,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 07:04:40,915 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-23 07:04:40,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:04:40,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1738293021, now seen corresponding path program 1 times [2022-11-23 07:04:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:04:40,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301685777] [2022-11-23 07:04:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 07:04:40,916 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 [2022-11-23 07:04:40,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:04:40,917 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -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) [2022-11-23 07:04:40,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845fd60f-15db-4d89-8942-83dbb21d45e4/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-23 07:04:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 07:04:41,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 07:04:41,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:04:43,345 INFO L321 Elim1Store]: treesize reduction 224, result has 32.7 percent of original size [2022-11-23 07:04:43,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 174 treesize of output 142 [2022-11-23 07:04:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 07:04:43,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 07:04:52,229 WARN L233 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 392 DAG size of output: 236 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 07:04:52,231 INFO L321 Elim1Store]: treesize reduction 665, result has 60.8 percent of original size [2022-11-23 07:04:52,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 177 treesize of output 1068