./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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_2843b758-0997-4920-b946-4f2f6dacb79f/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 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 --- 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 06:48:43,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 06:48:43,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 06:48:43,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 06:48:43,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 06:48:43,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 06:48:43,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 06:48:43,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 06:48:43,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 06:48:43,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 06:48:43,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 06:48:43,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 06:48:43,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 06:48:43,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 06:48:43,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 06:48:43,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 06:48:43,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 06:48:43,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 06:48:43,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 06:48:43,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 06:48:43,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 06:48:43,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 06:48:43,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 06:48:43,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 06:48:43,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 06:48:43,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 06:48:43,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 06:48:43,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 06:48:43,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 06:48:43,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 06:48:43,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 06:48:43,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 06:48:43,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 06:48:43,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 06:48:43,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 06:48:43,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 06:48:43,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 06:48:43,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 06:48:43,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 06:48:43,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 06:48:43,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 06:48:43,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-23 06:48:43,879 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 06:48:43,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 06:48:43,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 06:48:43,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 06:48:43,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 06:48:43,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 06:48:43,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 06:48:43,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 06:48:43,882 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 06:48:43,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 06:48:43,883 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 06:48:43,884 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 06:48:43,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 06:48:43,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 06:48:43,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 06:48:43,884 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 06:48:43,885 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 06:48:43,885 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 06:48:43,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 06:48:43,885 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 06:48:43,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 06:48:43,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 06:48:43,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 06:48:43,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 06:48:43,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 06:48:43,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:48:43,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 06:48:43,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 06:48:43,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 06:48:43,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 06:48:43,888 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-23 06:48:43,888 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-23 06:48:43,888 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-23 06:48:43,888 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-23 06:48:43,889 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-23 06:48:43,889 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_2843b758-0997-4920-b946-4f2f6dacb79f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 [2022-11-23 06:48:44,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 06:48:44,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 06:48:44,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 06:48:44,235 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 06:48:44,235 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 06:48:44,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-23 06:48:47,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 06:48:47,563 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 06:48:47,564 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-23 06:48:47,571 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/data/30642aeba/871e92c0aaf34f2eb69591ffdbce7a07/FLAGdb3f729b9 [2022-11-23 06:48:47,590 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/data/30642aeba/871e92c0aaf34f2eb69591ffdbce7a07 [2022-11-23 06:48:47,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 06:48:47,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 06:48:47,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 06:48:47,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 06:48:47,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 06:48:47,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:48:47" (1/1) ... [2022-11-23 06:48:47,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4de198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:47, skipping insertion in model container [2022-11-23 06:48:47,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:48:47" (1/1) ... [2022-11-23 06:48:47,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 06:48:47,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:48:47,825 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_2843b758-0997-4920-b946-4f2f6dacb79f/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-23 06:48:47,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:48:47,854 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 06:48:47,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@184f79ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:47, skipping insertion in model container [2022-11-23 06:48:47,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 06:48:47,855 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-23 06:48:47,857 INFO L158 Benchmark]: Toolchain (without parser) took 259.97ms. Allocated memory is still 157.3MB. Free memory was 116.0MB in the beginning and 106.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 06:48:47,858 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 06:48:47,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.64ms. Allocated memory is still 157.3MB. Free memory was 116.0MB in the beginning and 106.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 06:48:47,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.64ms. Allocated memory is still 157.3MB. Free memory was 116.0MB in the beginning and 106.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 111]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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_2843b758-0997-4920-b946-4f2f6dacb79f/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 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 --- 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 06:48:50,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 06:48:50,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 06:48:50,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 06:48:50,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 06:48:50,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 06:48:50,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 06:48:50,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 06:48:50,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 06:48:50,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 06:48:50,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 06:48:50,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 06:48:50,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 06:48:50,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 06:48:50,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 06:48:50,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 06:48:50,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 06:48:50,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 06:48:50,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 06:48:50,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 06:48:50,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 06:48:50,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 06:48:50,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 06:48:50,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 06:48:50,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 06:48:50,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 06:48:50,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 06:48:50,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 06:48:50,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 06:48:50,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 06:48:50,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 06:48:50,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 06:48:50,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 06:48:50,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 06:48:50,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 06:48:50,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 06:48:50,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 06:48:50,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 06:48:50,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 06:48:50,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 06:48:50,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 06:48:50,403 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2022-11-23 06:48:50,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 06:48:50,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 06:48:50,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 06:48:50,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 06:48:50,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 06:48:50,448 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 06:48:50,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 06:48:50,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 06:48:50,450 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 06:48:50,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 06:48:50,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 06:48:50,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 06:48:50,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 06:48:50,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 06:48:50,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 06:48:50,453 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 06:48:50,453 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 06:48:50,453 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 06:48:50,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 06:48:50,454 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 06:48:50,454 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 06:48:50,455 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 06:48:50,455 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 06:48:50,455 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 06:48:50,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 06:48:50,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 06:48:50,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 06:48:50,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:48:50,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 06:48:50,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 06:48:50,457 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 06:48:50,458 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 06:48:50,458 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-23 06:48:50,458 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-23 06:48:50,459 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-23 06:48:50,459 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-23 06:48:50,459 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-23 06:48:50,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 06:48:50,460 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_2843b758-0997-4920-b946-4f2f6dacb79f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 [2022-11-23 06:48:50,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 06:48:50,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 06:48:50,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 06:48:50,931 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 06:48:50,932 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 06:48:50,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-23 06:48:54,135 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 06:48:54,455 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 06:48:54,456 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-23 06:48:54,465 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/data/c5dca14ce/0071c9351cd74e508b084990e30d9285/FLAGd340d5954 [2022-11-23 06:48:54,486 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/data/c5dca14ce/0071c9351cd74e508b084990e30d9285 [2022-11-23 06:48:54,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 06:48:54,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 06:48:54,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 06:48:54,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 06:48:54,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 06:48:54,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce99e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54, skipping insertion in model container [2022-11-23 06:48:54,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 06:48:54,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:48:54,699 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_2843b758-0997-4920-b946-4f2f6dacb79f/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-23 06:48:54,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:48:54,724 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-23 06:48:54,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:48:54,745 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_2843b758-0997-4920-b946-4f2f6dacb79f/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-23 06:48:54,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:48:54,754 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 06:48:54,804 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_2843b758-0997-4920-b946-4f2f6dacb79f/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-23 06:48:54,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:48:54,851 INFO L208 MainTranslator]: Completed translation [2022-11-23 06:48:54,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54 WrapperNode [2022-11-23 06:48:54,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 06:48:54,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 06:48:54,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 06:48:54,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 06:48:54,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,898 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 198 [2022-11-23 06:48:54,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 06:48:54,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 06:48:54,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 06:48:54,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 06:48:54,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,958 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 06:48:54,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 06:48:54,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 06:48:54,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 06:48:54,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (1/1) ... [2022-11-23 06:48:54,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:48:54,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:48:55,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 06:48:55,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 06:48:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 06:48:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 06:48:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 06:48:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 06:48:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 06:48:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 06:48:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 06:48:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 06:48:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 06:48:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 06:48:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 06:48:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 06:48:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 06:48:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 06:48:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 06:48:55,067 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 06:48:55,185 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 06:48:55,187 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 06:48:56,233 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 06:48:56,248 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 06:48:56,248 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 06:48:56,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:48:56 BoogieIcfgContainer [2022-11-23 06:48:56,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 06:48:56,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 06:48:56,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 06:48:56,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 06:48:56,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:48:54" (1/3) ... [2022-11-23 06:48:56,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dec3b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:48:56, skipping insertion in model container [2022-11-23 06:48:56,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:54" (2/3) ... [2022-11-23 06:48:56,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dec3b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:48:56, skipping insertion in model container [2022-11-23 06:48:56,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:48:56" (3/3) ... [2022-11-23 06:48:56,267 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2022-11-23 06:48:56,286 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 06:48:56,287 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-23 06:48:56,287 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 06:48:56,442 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 06:48:56,521 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:48:56,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-23 06:48:56,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:48:56,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-23 06:48:56,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-23 06:48:56,608 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-23 06:48:56,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2022-11-23 06:48:56,631 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;@3807138d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:48:56,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 06:48:56,958 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:48:56,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:56,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1281176731, now seen corresponding path program 1 times [2022-11-23 06:48:56,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:48:56,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038934554] [2022-11-23 06:48:56,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:56,985 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 06:48:56,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:48:57,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:48:57,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:48:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:57,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 06:48:57,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:48:57,245 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 06:48:57,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:48:57,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:48:57,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038934554] [2022-11-23 06:48:57,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038934554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:57,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:57,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:48:57,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859272922] [2022-11-23 06:48:57,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:57,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 06:48:57,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:48:57,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 06:48:57,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 06:48:57,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:57,296 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:57,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 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 06:48:57,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:57,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:57,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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)] Ended with exit code 0 [2022-11-23 06:48:57,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:48:57,587 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:48:57,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:57,588 INFO L85 PathProgramCache]: Analyzing trace with hash -808820237, now seen corresponding path program 1 times [2022-11-23 06:48:57,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:48:57,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610557636] [2022-11-23 06:48:57,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:57,589 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 06:48:57,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:48:57,591 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:48:57,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:48:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:57,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 06:48:57,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:48:57,849 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 06:48:57,975 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 06:48:57,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:48:57,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:48:57,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610557636] [2022-11-23 06:48:57,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610557636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:48:57,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:48:57,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 06:48:57,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843001749] [2022-11-23 06:48:57,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:48:57,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 06:48:57,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:48:57,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 06:48:57,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 06:48:57,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:57,984 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:48:57,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 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 06:48:57,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:57,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:58,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:48:58,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:48:58,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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)] Ended with exit code 0 [2022-11-23 06:48:58,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:48:58,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:48:58,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:48:58,624 INFO L85 PathProgramCache]: Analyzing trace with hash -808820236, now seen corresponding path program 1 times [2022-11-23 06:48:58,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:48:58,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555712267] [2022-11-23 06:48:58,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:48:58,626 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 06:48:58,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:48:58,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:48:58,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:48:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:48:58,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 06:48:58,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:48:59,434 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 06:49:00,034 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 06:49:00,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:49:00,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:49:00,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555712267] [2022-11-23 06:49:00,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555712267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:49:00,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:49:00,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-23 06:49:00,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838307670] [2022-11-23 06:49:00,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:49:00,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 06:49:00,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:49:00,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 06:49:00,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-11-23 06:49:00,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:00,045 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:49:00,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.8125) internal successors, (125), 17 states have internal predecessors, (125), 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 06:49:00,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:00,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:00,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:02,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:02,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:02,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:49:02,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:02,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:02,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:49:02,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:49:02,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2027080307, now seen corresponding path program 1 times [2022-11-23 06:49:02,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:49:02,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700096048] [2022-11-23 06:49:02,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:49:02,629 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 06:49:02,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:49:02,638 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:02,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:49:02,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 06:49:02,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:49:03,310 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 06:49:04,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:49:04,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:49:04,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:49:04,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700096048] [2022-11-23 06:49:04,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700096048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:49:04,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:49:04,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-23 06:49:04,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317646817] [2022-11-23 06:49:04,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:49:04,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 06:49:04,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:49:04,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 06:49:04,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-23 06:49:04,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:04,065 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:49:04,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 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 06:49:04,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:04,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:04,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:49:04,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:06,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:06,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:06,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:49:06,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:49:06,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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)] Ended with exit code 0 [2022-11-23 06:49:06,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:06,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:49:06,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:49:06,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1550111655, now seen corresponding path program 1 times [2022-11-23 06:49:06,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:49:06,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583397991] [2022-11-23 06:49:06,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:49:06,481 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 06:49:06,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:49:06,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:06,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:49:06,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 06:49:06,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:49:07,520 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 06:49:07,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:49:07,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:49:07,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583397991] [2022-11-23 06:49:07,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583397991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:49:07,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:49:07,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-23 06:49:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092054701] [2022-11-23 06:49:07,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:49:07,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 06:49:07,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:49:07,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 06:49:07,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-11-23 06:49:07,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:07,525 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:49:07,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 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 06:49:07,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:07,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:07,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:49:07,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:49:07,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:08,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:08,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:08,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:49:08,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:49:08,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:49:08,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:08,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:08,966 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:49:08,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:49:08,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1437757326, now seen corresponding path program 1 times [2022-11-23 06:49:08,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:49:08,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137089953] [2022-11-23 06:49:08,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:49:08,967 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 06:49:08,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:49:08,973 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:08,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:49:09,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 06:49:09,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:49:09,868 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 06:49:09,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:49:09,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:49:09,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137089953] [2022-11-23 06:49:09,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137089953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:49:09,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:49:09,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-23 06:49:09,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130847704] [2022-11-23 06:49:09,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:49:09,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 06:49:09,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:49:09,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 06:49:09,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-11-23 06:49:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:09,871 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:49:09,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.0) internal successors, (130), 13 states have internal predecessors, (130), 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 06:49:09,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:09,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:09,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:49:09,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:49:09,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:49:09,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:49:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:49:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:49:10,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:49:10,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:11,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:11,128 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:49:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:49:11,128 INFO L85 PathProgramCache]: Analyzing trace with hash 8299494, now seen corresponding path program 1 times [2022-11-23 06:49:11,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:49:11,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903825761] [2022-11-23 06:49:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:49:11,129 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 06:49:11,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:49:11,130 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:11,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:49:11,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-23 06:49:11,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:49:11,888 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 06:49:12,752 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 06:49:12,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:49:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 06:49:22,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:49:22,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903825761] [2022-11-23 06:49:22,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903825761] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:49:22,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 06:49:22,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2022-11-23 06:49:22,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609277044] [2022-11-23 06:49:22,646 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 06:49:22,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-23 06:49:22,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:49:22,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-23 06:49:22,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1165, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 06:49:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:22,650 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:49:22,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 7.777777777777778) internal successors, (280), 37 states have internal predecessors, (280), 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 06:49:22,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:22,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:49:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:49:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:49:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:49:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:35,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:35,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:35,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:49:35,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:49:35,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:49:35,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:49:35,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:49:35,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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)] Forceful destruction successful, exit code 0 [2022-11-23 06:49:35,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:35,609 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:49:35,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:49:35,610 INFO L85 PathProgramCache]: Analyzing trace with hash 415558214, now seen corresponding path program 2 times [2022-11-23 06:49:35,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:49:35,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873190643] [2022-11-23 06:49:35,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 06:49:35,610 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 06:49:35,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:49:35,613 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:35,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:49:35,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 06:49:35,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 06:49:35,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-23 06:49:35,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:49:36,418 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 06:49:37,860 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 06:49:37,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:49:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 06:49:58,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:49:58,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873190643] [2022-11-23 06:49:58,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873190643] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:49:58,844 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 06:49:58,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2022-11-23 06:49:58,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532504369] [2022-11-23 06:49:58,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 06:49:58,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-23 06:49:58,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:49:58,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-23 06:49:58,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1935, Unknown=0, NotChecked=0, Total=2162 [2022-11-23 06:49:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:58,849 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:49:58,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 6.869565217391305) internal successors, (316), 47 states have internal predecessors, (316), 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 06:49:58,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:49:58,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:49:58,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:49:58,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:49:58,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:49:58,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:49:58,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:49:58,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:28,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 06:50:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:50:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:50:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:50:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:50:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:50:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:50:31,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:50:31,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:50:32,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:50:32,007 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:50:32,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:50:32,007 INFO L85 PathProgramCache]: Analyzing trace with hash -768282874, now seen corresponding path program 3 times [2022-11-23 06:50:32,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:50:32,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816185690] [2022-11-23 06:50:32,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 06:50:32,008 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 06:50:32,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:50:32,010 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:50:32,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:50:32,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 06:50:32,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 06:50:32,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-23 06:50:32,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:50:32,540 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 06:50:32,548 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 06:50:33,595 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-23 06:50:33,596 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 06:50:33,608 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 06:50:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-11-23 06:50:36,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:50:54,009 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_241 (_ BitVec 32))) (or (forall ((|v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| (_ BitVec 32))) (or (forall ((~i_BC~0 (_ BitVec 32))) (let ((.cse1 (bvmul (_ bv4 32) ~i_BC~0))) (let ((.cse0 (bvadd (_ bv4 32) .cse1 c_~B~0.offset))) (or (not (bvule .cse0 (select (store |c_#length| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| v_ArrVal_241) c_~B~0.base))) (bvule (bvadd (_ bv4 32) .cse1) v_ArrVal_241) (not (bvule (bvadd .cse1 c_~B~0.offset) .cse0)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32|))))) (not (bvule (_ bv4 32) v_ArrVal_241)))) (forall ((v_ArrVal_241 (_ BitVec 32))) (or (forall ((|v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| (_ BitVec 32))) (or (forall ((~i_BC~0 (_ BitVec 32))) (let ((.cse3 (bvmul (_ bv4 32) ~i_BC~0))) (let ((.cse2 (bvadd (_ bv4 32) .cse3 c_~B~0.offset))) (or (not (bvule .cse2 (select (store |c_#length| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| v_ArrVal_241) c_~B~0.base))) (bvule .cse3 (bvadd (_ bv4 32) .cse3)) (not (bvule (bvadd .cse3 c_~B~0.offset) .cse2)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32|))))) (not (bvule (_ bv4 32) v_ArrVal_241))))) is different from false [2022-11-23 06:50:58,232 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_241 (_ BitVec 32))) (or (not (bvule (_ bv4 32) v_ArrVal_241)) (forall ((|v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| (_ BitVec 32))) (or (forall ((~i_BC~0 (_ BitVec 32))) (let ((.cse0 (bvmul (_ bv4 32) ~i_BC~0))) (let ((.cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_#t~ret14#1.offset| .cse0))) (or (not (bvule (bvadd |c_ULTIMATE.start_main_#t~ret14#1.offset| .cse0) .cse1)) (not (bvule .cse1 (select (store |c_#length| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| v_ArrVal_241) |c_ULTIMATE.start_main_#t~ret14#1.base|))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32|))))))) (forall ((v_ArrVal_241 (_ BitVec 32))) (or (forall ((|v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| (_ BitVec 32))) (or (forall ((~i_BC~0 (_ BitVec 32))) (let ((.cse2 (bvmul (_ bv4 32) ~i_BC~0))) (let ((.cse3 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_#t~ret14#1.offset| .cse2))) (or (not (bvule (bvadd |c_ULTIMATE.start_main_#t~ret14#1.offset| .cse2) .cse3)) (not (bvule .cse3 (select (store |c_#length| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| v_ArrVal_241) |c_ULTIMATE.start_main_#t~ret14#1.base|))) (bvule (bvadd (_ bv4 32) .cse2) v_ArrVal_241))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32|))))) (not (bvule (_ bv4 32) v_ArrVal_241))))) is different from false [2022-11-23 06:51:00,459 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_241 (_ BitVec 32))) (or (forall ((|v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| (_ BitVec 32))) (or (forall ((~i_BC~0 (_ BitVec 32))) (let ((.cse1 (bvmul (_ bv4 32) ~i_BC~0))) (let ((.cse0 (bvadd (_ bv4 32) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset| .cse1))) (or (not (bvule .cse0 (select (store |c_#length| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| v_ArrVal_241) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|))) (bvule (bvadd (_ bv4 32) .cse1) v_ArrVal_241) (not (bvule (bvadd |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset| .cse1) .cse0)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32|))))) (not (bvule (_ bv4 32) v_ArrVal_241)))) (forall ((v_ArrVal_241 (_ BitVec 32))) (or (not (bvule (_ bv4 32) v_ArrVal_241)) (forall ((|v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| (_ BitVec 32))) (or (forall ((~i_BC~0 (_ BitVec 32))) (let ((.cse3 (bvmul (_ bv4 32) ~i_BC~0))) (let ((.cse2 (bvadd (_ bv4 32) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset| .cse3))) (or (not (bvule .cse2 (select (store |c_#length| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| v_ArrVal_241) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|))) (bvule .cse3 (bvadd (_ bv4 32) .cse3)) (not (bvule (bvadd |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset| .cse3) .cse2)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32|)))))))) is different from false [2022-11-23 06:51:02,599 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_241 (_ BitVec 32))) (or (forall ((|v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| (_ BitVec 32))) (or (forall ((~i_BC~0 (_ BitVec 32))) (let ((.cse1 (bvmul (_ bv4 32) ~i_BC~0))) (let ((.cse0 (bvadd |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| (_ bv4 32) .cse1))) (or (not (bvule .cse0 (select (store |c_#length| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| v_ArrVal_241) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (not (bvule (bvadd |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| .cse1) .cse0)) (bvule .cse1 (bvadd (_ bv4 32) .cse1)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32|))))) (not (bvule (_ bv4 32) v_ArrVal_241)))) (forall ((v_ArrVal_241 (_ BitVec 32))) (or (forall ((|v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| (_ BitVec 32))) (or (forall ((~i_BC~0 (_ BitVec 32))) (let ((.cse3 (bvmul (_ bv4 32) ~i_BC~0))) (let ((.cse2 (bvadd |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| (_ bv4 32) .cse3))) (or (not (bvule .cse2 (select (store |c_#length| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32| v_ArrVal_241) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (not (bvule (bvadd |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| .cse3) .cse2)) (bvule (bvadd (_ bv4 32) .cse3) v_ArrVal_241))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_#t~malloc37#1.base_32|))))) (not (bvule (_ bv4 32) v_ArrVal_241))))) is different from false [2022-11-23 06:51:17,336 WARN L233 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:51:23,905 WARN L233 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:51:23,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 06:51:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-11-23 06:51:25,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:51:25,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816185690] [2022-11-23 06:51:25,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816185690] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:51:25,252 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 06:51:25,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21] total 44 [2022-11-23 06:51:25,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764632013] [2022-11-23 06:51:25,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 06:51:25,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-23 06:51:25,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:51:25,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-23 06:51:25,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1490, Unknown=4, NotChecked=324, Total=1980 [2022-11-23 06:51:25,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:51:25,256 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:51:25,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 5.136363636363637) internal successors, (226), 45 states have internal predecessors, (226), 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 06:51:25,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:51:25,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:51:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:51:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:51:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:51:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:51:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:51:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:51:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:51:46,548 WARN L233 SmtUtils]: Spent 15.91s on a formula simplification that was a NOOP. DAG size: 84 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:53:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:53:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:53:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:53:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:53:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:53:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:53:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:53:01,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:53:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-23 06:53:01,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:53:01,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:53:01,914 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:53:01,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:53:01,915 INFO L85 PathProgramCache]: Analyzing trace with hash -301878008, now seen corresponding path program 1 times [2022-11-23 06:53:01,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:53:01,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829340719] [2022-11-23 06:53:01,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:53:01,916 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 06:53:01,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:53:01,917 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:53:01,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:53:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:53:02,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 06:53:02,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:53:05,204 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 115 proven. 59 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-23 06:53:05,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:53:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 115 proven. 59 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-23 06:53:10,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:53:10,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829340719] [2022-11-23 06:53:10,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [829340719] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:53:10,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 06:53:10,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 43 [2022-11-23 06:53:10,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972802916] [2022-11-23 06:53:10,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 06:53:10,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-23 06:53:10,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:53:10,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-23 06:53:10,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=1501, Unknown=0, NotChecked=0, Total=1806 [2022-11-23 06:53:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:53:10,543 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:53:10,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 7.906976744186046) internal successors, (340), 43 states have internal predecessors, (340), 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 06:53:10,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:53:10,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:53:10,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:53:10,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:53:10,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:53:10,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:53:10,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:53:10,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:53:10,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-11-23 06:53:10,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:53:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:53:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:53:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:53:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:53:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:53:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:53:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:53:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:53:15,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-23 06:53:15,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-23 06:53:15,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:53:15,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:53:15,498 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:53:15,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:53:15,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1888507507, now seen corresponding path program 1 times [2022-11-23 06:53:15,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:53:15,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554860995] [2022-11-23 06:53:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:53:15,500 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 06:53:15,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:53:15,501 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:53:15,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:53:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:53:15,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-23 06:53:15,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:53:16,582 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 06:53:16,594 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 06:53:18,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 06:53:18,561 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 06:53:18,579 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-23 06:53:18,580 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 06:53:19,339 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 06:53:19,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:53:36,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 06:53:39,864 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 06:53:39,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:53:39,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554860995] [2022-11-23 06:53:39,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554860995] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:53:39,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 06:53:39,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 34 [2022-11-23 06:53:39,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193186776] [2022-11-23 06:53:39,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 06:53:39,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-23 06:53:39,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:53:39,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-23 06:53:39,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 06:53:39,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:53:39,868 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:53:39,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 7.647058823529412) internal successors, (260), 35 states have internal predecessors, (260), 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 06:53:39,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:53:39,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:53:39,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:53:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:53:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:53:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:53:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:53:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:53:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-11-23 06:53:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-11-23 06:53:39,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:53:55,865 WARN L233 SmtUtils]: Spent 14.55s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:54:05,852 WARN L233 SmtUtils]: Spent 8.66s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:54:18,597 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 76 DAG size of output: 50 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:54:30,545 WARN L233 SmtUtils]: Spent 11.05s on a formula simplification. DAG size of input: 87 DAG size of output: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:54:32,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:54:34,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-23 06:54:37,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 06:55:01,418 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 98 DAG size of output: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:55:05,579 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 [0, 1] [2022-11-23 06:55:12,111 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 110 DAG size of output: 93 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:55:25,003 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 101 DAG size of output: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:55:37,405 WARN L233 SmtUtils]: Spent 10.17s on a formula simplification. DAG size of input: 98 DAG size of output: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:55:52,281 WARN L233 SmtUtils]: Spent 13.45s on a formula simplification. DAG size of input: 109 DAG size of output: 83 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:55:58,746 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 98 DAG size of output: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:56:08,437 WARN L233 SmtUtils]: Spent 9.01s on a formula simplification. DAG size of input: 87 DAG size of output: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:56:23,688 WARN L233 SmtUtils]: Spent 9.44s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:56:39,486 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 06:56:51,347 WARN L233 SmtUtils]: Spent 11.40s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 06:57:18,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:57:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:57:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:57:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:57:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:57:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:57:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:57:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:57:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-23 06:57:18,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-23 06:57:18,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-23 06:57:18,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:57:18,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:57:18,505 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:57:18,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:57:18,505 INFO L85 PathProgramCache]: Analyzing trace with hash -181695246, now seen corresponding path program 1 times [2022-11-23 06:57:18,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:57:18,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968945303] [2022-11-23 06:57:18,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:57:18,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 06:57:18,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:57:18,507 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:57:18,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 (14)] Waiting until timeout for monitored process [2022-11-23 06:57:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:57:18,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 06:57:18,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:57:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 06:57:18,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:57:18,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:57:18,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968945303] [2022-11-23 06:57:18,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968945303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:57:18,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:57:18,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:57:18,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803174836] [2022-11-23 06:57:18,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:57:18,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:57:18,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:57:18,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:57:18,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:57:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:57:18,796 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:57:18,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 77.0) internal successors, (154), 3 states have internal predecessors, (154), 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 06:57:18,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:57:18,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:57:18,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:57:18,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:57:18,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:57:18,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:57:18,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:57:18,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:57:18,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-11-23 06:57:18,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-23 06:57:18,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-11-23 06:57:18,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:57:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:57:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:57:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:57:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:57:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:57:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:57:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:57:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:57:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-23 06:57:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-23 06:57:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-23 06:57:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:57:18,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 (14)] Forceful destruction successful, exit code 0 [2022-11-23 06:57:19,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:57:19,155 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:57:19,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:57:19,156 INFO L85 PathProgramCache]: Analyzing trace with hash -181695245, now seen corresponding path program 2 times [2022-11-23 06:57:19,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:57:19,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031732893] [2022-11-23 06:57:19,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 06:57:19,156 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 06:57:19,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:57:19,158 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:57:19,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:57:19,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 06:57:19,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 06:57:19,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-23 06:57:19,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:57:20,065 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 06:57:20,076 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 06:57:22,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 06:57:22,274 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 06:57:22,315 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-23 06:57:22,316 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 06:57:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 06:57:24,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:57:41,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 06:57:41,394 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 06:57:48,242 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 06:57:48,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 06:57:48,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031732893] [2022-11-23 06:57:48,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031732893] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:57:48,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 06:57:48,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 28] total 53 [2022-11-23 06:57:48,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111441620] [2022-11-23 06:57:48,243 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 06:57:48,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-23 06:57:48,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 06:57:48,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-23 06:57:48,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=2426, Unknown=0, NotChecked=0, Total=2756 [2022-11-23 06:57:48,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:57:48,246 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:57:48,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 6.150943396226415) internal successors, (326), 53 states have internal predecessors, (326), 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 06:57:48,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:57:48,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:57:48,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:57:48,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:57:48,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:57:48,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:57:48,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:57:48,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:57:48,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-11-23 06:57:48,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-23 06:57:48,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-11-23 06:57:48,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:57:48,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:58:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:58:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 06:58:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 06:58:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:58:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 06:58:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:58:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 06:58:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-23 06:58:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-23 06:58:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-23 06:58:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-23 06:58:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:58:59,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-23 06:58:59,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:58:59,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:58:59,892 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 06:58:59,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:58:59,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1941561442, now seen corresponding path program 3 times [2022-11-23 06:58:59,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 06:58:59,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75291174] [2022-11-23 06:58:59,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 06:58:59,893 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 06:58:59,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 06:58:59,895 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:58:59,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 06:59:00,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-23 06:59:00,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 06:59:00,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-23 06:59:00,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:59:00,351 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 5 [2022-11-23 06:59:00,356 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 06:59:02,048 INFO L321 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2022-11-23 06:59:02,048 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 06:59:02,095 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-23 06:59:02,096 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 06:59:06,134 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 06:59:06,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:59:38,128 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:00:07,989 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 07:00:07,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:00:07,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75291174] [2022-11-23 07:00:07,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75291174] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 07:00:07,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 07:00:07,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29] total 58 [2022-11-23 07:00:07,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472766279] [2022-11-23 07:00:07,990 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 07:00:07,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-11-23 07:00:07,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:00:07,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-11-23 07:00:07,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=3176, Unknown=1, NotChecked=0, Total=3422 [2022-11-23 07:00:07,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:00:07,994 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:00:07,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 4.189655172413793) internal successors, (243), 59 states have internal predecessors, (243), 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 07:00:07,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:00:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 07:00:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 07:00:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 07:00:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 07:00:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 07:00:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-23 07:00:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-11-23 07:00:07,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-11-23 07:00:07,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-23 07:00:07,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-11-23 07:00:07,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:00:07,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-11-23 07:00:07,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:00:39,939 WARN L233 SmtUtils]: Spent 11.05s on a formula simplification. DAG size of input: 76 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:00:54,895 WARN L233 SmtUtils]: Spent 12.41s on a formula simplification. DAG size of input: 79 DAG size of output: 78 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:01:02,044 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:01:09,941 WARN L233 SmtUtils]: Spent 6.90s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:01:36,519 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification that was a NOOP. DAG size: 90 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:02:21,578 WARN L233 SmtUtils]: Spent 7.74s on a formula simplification. DAG size of input: 100 DAG size of output: 73 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:02:29,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:02:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-23 07:02:29,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-23 07:02:29,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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)] Forceful destruction successful, exit code 0 [2022-11-23 07:02:29,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 07:02:29,552 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 07:02:29,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:02:29,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1345874784, now seen corresponding path program 4 times [2022-11-23 07:02:29,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:02:29,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341471860] [2022-11-23 07:02:29,553 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 07:02:29,553 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 07:02:29,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:02:29,554 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 07:02:29,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 07:02:29,895 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 07:02:29,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 07:02:29,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-23 07:02:29,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:02:30,876 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 07:02:31,702 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 17 treesize of output 13 [2022-11-23 07:02:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 07:02:33,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 07:02:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 07:02:40,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:02:40,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341471860] [2022-11-23 07:02:40,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341471860] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 07:02:40,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 07:02:40,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 45 [2022-11-23 07:02:40,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118146333] [2022-11-23 07:02:40,290 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 07:02:40,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-23 07:02:40,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:02:40,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-23 07:02:40,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=1606, Unknown=0, NotChecked=0, Total=1980 [2022-11-23 07:02:40,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:02:40,292 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:02:40,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 6.822222222222222) internal successors, (307), 45 states have internal predecessors, (307), 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 07:02:40,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:02:40,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 07:02:40,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 07:02:40,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 07:02:40,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 07:02:40,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 07:02:40,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-23 07:02:40,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-11-23 07:02:40,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-11-23 07:02:40,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-23 07:02:40,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-11-23 07:02:40,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:02:40,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-11-23 07:02:40,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-11-23 07:02:40,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:02:52,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:02:52,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 07:02:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 07:02:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 07:02:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 07:02:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 07:02:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 07:02:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-23 07:02:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-23 07:02:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-23 07:02:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-11-23 07:02:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:02:52,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-23 07:02:52,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-23 07:02:52,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-23 07:02:52,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 07:02:52,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 07:02:52,205 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2022-11-23 07:02:52,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 07:02:52,206 INFO L85 PathProgramCache]: Analyzing trace with hash -323022315, now seen corresponding path program 5 times [2022-11-23 07:02:52,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 07:02:52,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185275052] [2022-11-23 07:02:52,206 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 07:02:52,206 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 07:02:52,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/bin/ugemcutter-1C6z4D84am/mathsat [2022-11-23 07:02:52,207 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 07:02:52,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2843b758-0997-4920-b946-4f2f6dacb79f/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 07:02:52,501 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-23 07:02:52,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 07:02:52,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-23 07:02:52,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 07:02:53,183 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 07:02:55,516 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 07:02:55,516 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 07:02:57,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:02:57,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 07:03:15,072 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:03:15,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 07:03:15,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185275052] [2022-11-23 07:03:15,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185275052] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 07:03:15,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 07:03:15,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 54 [2022-11-23 07:03:15,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580280281] [2022-11-23 07:03:15,073 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 07:03:15,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-23 07:03:15,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 07:03:15,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-23 07:03:15,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2573, Unknown=0, NotChecked=0, Total=2970 [2022-11-23 07:03:15,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:03:15,075 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:03:15,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 5.592592592592593) internal successors, (302), 55 states have internal predecessors, (302), 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 07:03:15,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:03:15,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-23 07:03:15,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-23 07:03:15,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 07:03:15,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-23 07:03:15,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 07:03:15,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-23 07:03:15,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-11-23 07:03:15,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-11-23 07:03:15,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-23 07:03:15,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-11-23 07:03:15,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 07:03:15,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-11-23 07:03:15,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-11-23 07:03:15,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-23 07:03:15,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:03:26,124 WARN L233 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:03:33,260 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)