./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b04cfdc033f25419ae30b8c067b1e8de34cd963e91f12bceeafd05a3d125e0b7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:21:54,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:21:54,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:21:54,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:21:54,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:21:54,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:21:54,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:21:54,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:21:54,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:21:54,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:21:54,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:21:54,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:21:54,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:21:54,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:21:54,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:21:54,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:21:54,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:21:54,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:21:54,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:21:54,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:21:54,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:21:54,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:21:54,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:21:54,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:21:54,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:21:54,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:21:54,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:21:54,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:21:54,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:21:54,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:21:54,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:21:54,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:21:54,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:21:54,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:21:54,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:21:54,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:21:54,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:21:54,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:21:54,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:21:54,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:21:54,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:21:54,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-07 01:21:54,691 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:21:54,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:21:54,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:21:54,694 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:21:54,694 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:21:54,694 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:21:54,694 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:21:54,695 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:21:54,695 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:21:54,695 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:21:54,696 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:21:54,697 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:21:54,697 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:21:54,697 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:21:54,698 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:21:54,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 01:21:54,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 01:21:54,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:21:54,699 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:21:54,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 01:21:54,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:21:54,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:21:54,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:21:54,700 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 01:21:54,701 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 01:21:54,701 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 01:21:54,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:21:54,701 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:21:54,702 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:21:54,702 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:21:54,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:21:54,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:21:54,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:21:54,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:21:54,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:21:54,704 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:21:54,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:21:54,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:21:54,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:21:54,704 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b04cfdc033f25419ae30b8c067b1e8de34cd963e91f12bceeafd05a3d125e0b7 [2021-11-07 01:21:55,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:21:55,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:21:55,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:21:55,087 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:21:55,088 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:21:55,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_3.i [2021-11-07 01:21:55,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/data/dbef79874/6f08cb12300b4faaabc8e70ee005bd56/FLAG8ae7566f5 [2021-11-07 01:21:55,878 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:21:55,879 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/sv-benchmarks/c/ldv-memsafety/memleaks_test23_3.i [2021-11-07 01:21:55,902 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/data/dbef79874/6f08cb12300b4faaabc8e70ee005bd56/FLAG8ae7566f5 [2021-11-07 01:21:56,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/data/dbef79874/6f08cb12300b4faaabc8e70ee005bd56 [2021-11-07 01:21:56,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:21:56,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:21:56,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:56,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:21:56,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:21:56,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225e1e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56, skipping insertion in model container [2021-11-07 01:21:56,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:56" (1/1) ... [2021-11-07 01:21:56,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:21:56,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:21:56,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:56,949 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:21:56,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@497a1709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:56, skipping insertion in model container [2021-11-07 01:21:56,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:56,950 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:21:56,953 INFO L168 Benchmark]: Toolchain (without parser) took 819.59 ms. Allocated memory is still 109.1 MB. Free memory was 65.2 MB in the beginning and 76.8 MB in the end (delta: -11.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:21:56,954 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 109.1 MB. Free memory is still 83.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:21:56,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.25 ms. Allocated memory is still 109.1 MB. Free memory was 64.9 MB in the beginning and 77.1 MB in the end (delta: -12.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:21:56,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 109.1 MB. Free memory is still 83.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 816.25 ms. Allocated memory is still 109.1 MB. Free memory was 64.9 MB in the beginning and 77.1 MB in the end (delta: -12.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b04cfdc033f25419ae30b8c067b1e8de34cd963e91f12bceeafd05a3d125e0b7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:21:59,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:21:59,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:21:59,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:21:59,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:21:59,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:21:59,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:21:59,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:21:59,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:21:59,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:21:59,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:21:59,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:21:59,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:21:59,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:21:59,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:21:59,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:21:59,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:21:59,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:21:59,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:21:59,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:21:59,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:21:59,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:21:59,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:21:59,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:21:59,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:21:59,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:21:59,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:21:59,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:21:59,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:21:59,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:21:59,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:21:59,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:21:59,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:21:59,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:21:59,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:21:59,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:21:59,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:21:59,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:21:59,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:21:59,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:21:59,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:21:59,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-07 01:22:00,016 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:22:00,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:22:00,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:22:00,019 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:22:00,019 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:22:00,019 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:22:00,020 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:22:00,020 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:22:00,020 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:22:00,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 01:22:00,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 01:22:00,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:22:00,025 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:22:00,025 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 01:22:00,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:22:00,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:22:00,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:22:00,026 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 01:22:00,026 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 01:22:00,027 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 01:22:00,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:22:00,027 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:22:00,028 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:22:00,028 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:22:00,028 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:22:00,029 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:22:00,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:22:00,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:22:00,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:22:00,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:22:00,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:22:00,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:22:00,031 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:22:00,032 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:22:00,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:22:00,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:22:00,033 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_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b04cfdc033f25419ae30b8c067b1e8de34cd963e91f12bceeafd05a3d125e0b7 [2021-11-07 01:22:00,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:22:00,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:22:00,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:22:00,519 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:22:00,520 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:22:00,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_3.i [2021-11-07 01:22:00,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/data/7094fd6a3/d6fda73fd75d441bacfe02f79ed3900c/FLAG2a7e5ed24 [2021-11-07 01:22:01,462 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:22:01,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/sv-benchmarks/c/ldv-memsafety/memleaks_test23_3.i [2021-11-07 01:22:01,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/data/7094fd6a3/d6fda73fd75d441bacfe02f79ed3900c/FLAG2a7e5ed24 [2021-11-07 01:22:01,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/data/7094fd6a3/d6fda73fd75d441bacfe02f79ed3900c [2021-11-07 01:22:01,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:22:01,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:22:01,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:22:01,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:22:01,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:22:01,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:22:01" (1/1) ... [2021-11-07 01:22:01,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d85079c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:01, skipping insertion in model container [2021-11-07 01:22:01,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:22:01" (1/1) ... [2021-11-07 01:22:01,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:22:01,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:22:02,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:22:02,308 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:22:02,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:22:02,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:22:02,462 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:22:02,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:22:02,615 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:22:02,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02 WrapperNode [2021-11-07 01:22:02,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:22:02,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:22:02,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:22:02,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:22:02,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:22:02,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:22:02,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:22:02,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:22:02,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:22:02,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:22:02,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:22:02,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:22:02,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:22:02,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:22:02,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:22:02,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:22:02,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:22:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:22:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:22:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:22:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:22:02,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:22:02,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:22:02,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:22:02,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:22:02,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:22:04,386 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:22:04,386 INFO L299 CfgBuilder]: Removed 53 assume(true) statements. [2021-11-07 01:22:04,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:22:04 BoogieIcfgContainer [2021-11-07 01:22:04,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:22:04,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:22:04,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:22:04,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:22:04,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:22:01" (1/3) ... [2021-11-07 01:22:04,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e960de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:22:04, skipping insertion in model container [2021-11-07 01:22:04,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02" (2/3) ... [2021-11-07 01:22:04,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e960de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:22:04, skipping insertion in model container [2021-11-07 01:22:04,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:22:04" (3/3) ... [2021-11-07 01:22:04,399 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test23_3.i [2021-11-07 01:22:04,406 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:22:04,406 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 93 error locations. [2021-11-07 01:22:04,465 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:22:04,475 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:22:04,476 INFO L340 AbstractCegarLoop]: Starting to check reachability of 93 error locations. [2021-11-07 01:22:04,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 114 states have (on average 1.9649122807017543) internal successors, (224), 207 states have internal predecessors, (224), 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) [2021-11-07 01:22:04,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:22:04,532 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:04,533 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:22:04,533 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:04,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:04,546 INFO L85 PathProgramCache]: Analyzing trace with hash 889508777, now seen corresponding path program 1 times [2021-11-07 01:22:04,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:04,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23138985] [2021-11-07 01:22:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:04,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:04,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:04,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:04,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:22:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:04,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:22:04,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:04,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-07 01:22:04,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:04,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:04,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:04,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23138985] [2021-11-07 01:22:04,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23138985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:04,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:04,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:22:04,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331291366] [2021-11-07 01:22:04,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:22:04,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:04,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:22:05,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:05,006 INFO L87 Difference]: Start difference. First operand has 208 states, 114 states have (on average 1.9649122807017543) internal successors, (224), 207 states have internal predecessors, (224), 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) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-11-07 01:22:06,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:06,233 INFO L93 Difference]: Finished difference Result 420 states and 445 transitions. [2021-11-07 01:22:06,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:22:06,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) Word has length 6 [2021-11-07 01:22:06,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:06,252 INFO L225 Difference]: With dead ends: 420 [2021-11-07 01:22:06,254 INFO L226 Difference]: Without dead ends: 416 [2021-11-07 01:22:06,256 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:22:06,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-11-07 01:22:06,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 208. [2021-11-07 01:22:06,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 116 states have (on average 1.9224137931034482) internal successors, (223), 207 states have internal predecessors, (223), 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) [2021-11-07 01:22:06,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 223 transitions. [2021-11-07 01:22:06,343 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 223 transitions. Word has length 6 [2021-11-07 01:22:06,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:06,344 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 223 transitions. [2021-11-07 01:22:06,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-11-07 01:22:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 223 transitions. [2021-11-07 01:22:06,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:22:06,346 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:06,346 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:22:06,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:06,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:06,560 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:06,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash 889508778, now seen corresponding path program 1 times [2021-11-07 01:22:06,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:06,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309894105] [2021-11-07 01:22:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:06,562 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:06,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:06,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:06,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:22:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:06,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 01:22:06,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:06,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-07 01:22:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:06,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:07,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:07,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309894105] [2021-11-07 01:22:07,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309894105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:07,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:07,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-07 01:22:07,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583990503] [2021-11-07 01:22:07,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:22:07,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:07,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:22:07,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:22:07,117 INFO L87 Difference]: Start difference. First operand 208 states and 223 transitions. Second operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 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) [2021-11-07 01:22:10,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:10,315 INFO L93 Difference]: Finished difference Result 431 states and 456 transitions. [2021-11-07 01:22:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:22:10,317 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 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) Word has length 6 [2021-11-07 01:22:10,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:10,320 INFO L225 Difference]: With dead ends: 431 [2021-11-07 01:22:10,320 INFO L226 Difference]: Without dead ends: 431 [2021-11-07 01:22:10,321 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:22:10,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-11-07 01:22:10,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 209. [2021-11-07 01:22:10,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 117 states have (on average 1.9059829059829059) internal successors, (223), 208 states have internal predecessors, (223), 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) [2021-11-07 01:22:10,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 223 transitions. [2021-11-07 01:22:10,336 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 223 transitions. Word has length 6 [2021-11-07 01:22:10,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:10,336 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 223 transitions. [2021-11-07 01:22:10,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 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) [2021-11-07 01:22:10,337 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 223 transitions. [2021-11-07 01:22:10,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:22:10,338 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:10,338 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:22:10,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:10,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:10,549 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:10,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:10,550 INFO L85 PathProgramCache]: Analyzing trace with hash 889568359, now seen corresponding path program 1 times [2021-11-07 01:22:10,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:10,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674549726] [2021-11-07 01:22:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:10,551 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:10,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:10,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:10,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:22:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:10,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:22:10,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:10,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:10,701 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:10,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674549726] [2021-11-07 01:22:10,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674549726] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:10,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:10,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:22:10,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799755046] [2021-11-07 01:22:10,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:22:10,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:10,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:22:10,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:22:10,703 INFO L87 Difference]: Start difference. First operand 209 states and 223 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-07 01:22:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:10,747 INFO L93 Difference]: Finished difference Result 308 states and 323 transitions. [2021-11-07 01:22:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:22:10,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2021-11-07 01:22:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:10,750 INFO L225 Difference]: With dead ends: 308 [2021-11-07 01:22:10,750 INFO L226 Difference]: Without dead ends: 308 [2021-11-07 01:22:10,750 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:10,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-11-07 01:22:10,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 204. [2021-11-07 01:22:10,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 115 states have (on average 1.8869565217391304) internal successors, (217), 203 states have internal predecessors, (217), 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) [2021-11-07 01:22:10,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 217 transitions. [2021-11-07 01:22:10,760 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 217 transitions. Word has length 6 [2021-11-07 01:22:10,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:10,761 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 217 transitions. [2021-11-07 01:22:10,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-07 01:22:10,761 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 217 transitions. [2021-11-07 01:22:10,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:22:10,762 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:10,762 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:10,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:10,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:10,973 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr68REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:10,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:10,974 INFO L85 PathProgramCache]: Analyzing trace with hash 119601288, now seen corresponding path program 1 times [2021-11-07 01:22:10,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:10,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955696025] [2021-11-07 01:22:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:10,975 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:10,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:10,976 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:10,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:22:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:11,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:22:11,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:11,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:11,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:11,152 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:11,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955696025] [2021-11-07 01:22:11,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955696025] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:11,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:11,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:22:11,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512586182] [2021-11-07 01:22:11,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:22:11,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:11,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:22:11,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:22:11,156 INFO L87 Difference]: Start difference. First operand 204 states and 217 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-11-07 01:22:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:11,189 INFO L93 Difference]: Finished difference Result 256 states and 269 transitions. [2021-11-07 01:22:11,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:22:11,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) Word has length 8 [2021-11-07 01:22:11,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:11,191 INFO L225 Difference]: With dead ends: 256 [2021-11-07 01:22:11,191 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 01:22:11,192 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:11,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 01:22:11,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 204. [2021-11-07 01:22:11,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 115 states have (on average 1.8782608695652174) internal successors, (216), 203 states have internal predecessors, (216), 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) [2021-11-07 01:22:11,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 216 transitions. [2021-11-07 01:22:11,201 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 216 transitions. Word has length 8 [2021-11-07 01:22:11,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:11,201 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 216 transitions. [2021-11-07 01:22:11,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-11-07 01:22:11,202 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 216 transitions. [2021-11-07 01:22:11,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:22:11,202 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:11,202 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:11,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:11,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:11,413 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:11,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:11,414 INFO L85 PathProgramCache]: Analyzing trace with hash 119442413, now seen corresponding path program 1 times [2021-11-07 01:22:11,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:11,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901438934] [2021-11-07 01:22:11,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:11,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:11,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:11,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:11,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:22:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:11,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:22:11,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:11,557 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-11-07 01:22:11,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-11-07 01:22:11,696 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-07 01:22:11,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 32 [2021-11-07 01:22:11,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:11,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:16,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:16,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:16,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901438934] [2021-11-07 01:22:16,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901438934] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:16,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:16,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 01:22:16,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361601566] [2021-11-07 01:22:16,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:22:16,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:16,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:22:16,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=25, Unknown=2, NotChecked=0, Total=42 [2021-11-07 01:22:16,063 INFO L87 Difference]: Start difference. First operand 204 states and 216 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:16,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:16,684 INFO L93 Difference]: Finished difference Result 278 states and 292 transitions. [2021-11-07 01:22:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:22:16,684 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:22:16,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:16,685 INFO L225 Difference]: With dead ends: 278 [2021-11-07 01:22:16,686 INFO L226 Difference]: Without dead ends: 278 [2021-11-07 01:22:16,686 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=29, Invalid=41, Unknown=2, NotChecked=0, Total=72 [2021-11-07 01:22:16,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-11-07 01:22:16,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 203. [2021-11-07 01:22:16,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 115 states have (on average 1.8695652173913044) internal successors, (215), 202 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:16,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 215 transitions. [2021-11-07 01:22:16,693 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 215 transitions. Word has length 8 [2021-11-07 01:22:16,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:16,693 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 215 transitions. [2021-11-07 01:22:16,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:16,694 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 215 transitions. [2021-11-07 01:22:16,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:22:16,694 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:16,694 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:16,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:16,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:16,905 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:16,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:16,906 INFO L85 PathProgramCache]: Analyzing trace with hash 119442414, now seen corresponding path program 1 times [2021-11-07 01:22:16,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:16,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648462811] [2021-11-07 01:22:16,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:16,906 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:16,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:16,908 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:16,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:22:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:17,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:22:17,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:17,052 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-07 01:22:17,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 22 treesize of output 23 [2021-11-07 01:22:17,098 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-11-07 01:22:17,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 36 [2021-11-07 01:22:17,354 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-07 01:22:17,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 60 [2021-11-07 01:22:17,411 INFO L354 Elim1Store]: treesize reduction 18, result has 63.3 percent of original size [2021-11-07 01:22:17,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 71 [2021-11-07 01:22:17,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:17,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:19,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:19,961 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:19,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648462811] [2021-11-07 01:22:19,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648462811] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:19,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:19,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-11-07 01:22:19,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644446386] [2021-11-07 01:22:19,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:22:19,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:19,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:22:19,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2021-11-07 01:22:19,963 INFO L87 Difference]: Start difference. First operand 203 states and 215 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:21,267 INFO L93 Difference]: Finished difference Result 277 states and 291 transitions. [2021-11-07 01:22:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:22:21,267 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:22:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:21,269 INFO L225 Difference]: With dead ends: 277 [2021-11-07 01:22:21,269 INFO L226 Difference]: Without dead ends: 277 [2021-11-07 01:22:21,269 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2021-11-07 01:22:21,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-07 01:22:21,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 202. [2021-11-07 01:22:21,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 115 states have (on average 1.8608695652173912) internal successors, (214), 201 states have internal predecessors, (214), 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) [2021-11-07 01:22:21,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 214 transitions. [2021-11-07 01:22:21,275 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 214 transitions. Word has length 8 [2021-11-07 01:22:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:21,276 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 214 transitions. [2021-11-07 01:22:21,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:21,276 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 214 transitions. [2021-11-07 01:22:21,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:22:21,277 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:21,277 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:21,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:21,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:21,490 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr68REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:21,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:21,491 INFO L85 PathProgramCache]: Analyzing trace with hash 176859590, now seen corresponding path program 1 times [2021-11-07 01:22:21,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:21,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391094322] [2021-11-07 01:22:21,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:21,492 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:21,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:21,493 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:21,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:22:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:21,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:22:21,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:21,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:21,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:21,719 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:21,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391094322] [2021-11-07 01:22:21,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391094322] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:21,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:21,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:22:21,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075671907] [2021-11-07 01:22:21,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:22:21,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:21,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:22:21,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:22:21,721 INFO L87 Difference]: Start difference. First operand 202 states and 214 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:21,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:21,813 INFO L93 Difference]: Finished difference Result 212 states and 221 transitions. [2021-11-07 01:22:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:22:21,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:22:21,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:21,826 INFO L225 Difference]: With dead ends: 212 [2021-11-07 01:22:21,826 INFO L226 Difference]: Without dead ends: 212 [2021-11-07 01:22:21,827 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:22:21,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-07 01:22:21,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 204. [2021-11-07 01:22:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 117 states have (on average 1.8461538461538463) internal successors, (216), 203 states have internal predecessors, (216), 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) [2021-11-07 01:22:21,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 216 transitions. [2021-11-07 01:22:21,832 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 216 transitions. Word has length 8 [2021-11-07 01:22:21,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:21,833 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 216 transitions. [2021-11-07 01:22:21,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:21,833 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 216 transitions. [2021-11-07 01:22:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:22:21,834 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:21,834 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:21,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:22,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:22,045 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:22,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:22,046 INFO L85 PathProgramCache]: Analyzing trace with hash 176861671, now seen corresponding path program 1 times [2021-11-07 01:22:22,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:22,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370776710] [2021-11-07 01:22:22,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:22,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:22,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:22,047 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:22,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:22:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:22,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:22:22,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:22,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:22,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:22,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:22,199 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:22,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370776710] [2021-11-07 01:22:22,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370776710] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:22,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:22,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:22:22,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977461612] [2021-11-07 01:22:22,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:22:22,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:22,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:22:22,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:22:22,201 INFO L87 Difference]: Start difference. First operand 204 states and 216 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-07 01:22:22,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:22,498 INFO L93 Difference]: Finished difference Result 207 states and 218 transitions. [2021-11-07 01:22:22,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:22:22,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2021-11-07 01:22:22,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:22,500 INFO L225 Difference]: With dead ends: 207 [2021-11-07 01:22:22,500 INFO L226 Difference]: Without dead ends: 202 [2021-11-07 01:22:22,500 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:22:22,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-07 01:22:22,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-11-07 01:22:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 115 states have (on average 1.8521739130434782) internal successors, (213), 201 states have internal predecessors, (213), 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) [2021-11-07 01:22:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 213 transitions. [2021-11-07 01:22:22,506 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 213 transitions. Word has length 8 [2021-11-07 01:22:22,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:22,507 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 213 transitions. [2021-11-07 01:22:22,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-07 01:22:22,507 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 213 transitions. [2021-11-07 01:22:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 01:22:22,507 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:22,508 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:22,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:22,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:22,708 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:22,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:22,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2124084655, now seen corresponding path program 1 times [2021-11-07 01:22:22,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:22,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679299155] [2021-11-07 01:22:22,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:22,709 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:22,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:22,710 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:22,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:22:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:22,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:22:22,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:22,888 INFO L354 Elim1Store]: treesize reduction 13, result has 35.0 percent of original size [2021-11-07 01:22:22,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 9 treesize of output 13 [2021-11-07 01:22:22,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:22,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:22,980 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:22,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679299155] [2021-11-07 01:22:22,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679299155] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:22,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:22,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:22:22,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443243677] [2021-11-07 01:22:22,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:22:22,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:22,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:22:22,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:22,982 INFO L87 Difference]: Start difference. First operand 202 states and 213 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:23,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:23,480 INFO L93 Difference]: Finished difference Result 226 states and 238 transitions. [2021-11-07 01:22:23,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:22:23,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 01:22:23,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:23,482 INFO L225 Difference]: With dead ends: 226 [2021-11-07 01:22:23,482 INFO L226 Difference]: Without dead ends: 226 [2021-11-07 01:22:23,482 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:22:23,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-11-07 01:22:23,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 204. [2021-11-07 01:22:23,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 120 states have (on average 1.8166666666666667) internal successors, (218), 203 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 218 transitions. [2021-11-07 01:22:23,488 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 218 transitions. Word has length 13 [2021-11-07 01:22:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:23,488 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 218 transitions. [2021-11-07 01:22:23,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:23,488 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 218 transitions. [2021-11-07 01:22:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 01:22:23,489 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:23,489 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:23,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-07 01:22:23,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:23,701 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:23,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:23,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2124084654, now seen corresponding path program 1 times [2021-11-07 01:22:23,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:23,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465233639] [2021-11-07 01:22:23,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:23,702 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:23,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:23,703 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:23,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:22:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:23,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:22:23,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:23,889 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-07 01:22:23,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-07 01:22:23,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:23,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:24,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:24,192 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:24,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465233639] [2021-11-07 01:22:24,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465233639] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:24,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:24,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 01:22:24,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408245945] [2021-11-07 01:22:24,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:22:24,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:24,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:22:24,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:22:24,194 INFO L87 Difference]: Start difference. First operand 204 states and 218 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:24,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:24,781 INFO L93 Difference]: Finished difference Result 200 states and 213 transitions. [2021-11-07 01:22:24,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:22:24,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 01:22:24,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:24,783 INFO L225 Difference]: With dead ends: 200 [2021-11-07 01:22:24,783 INFO L226 Difference]: Without dead ends: 200 [2021-11-07 01:22:24,783 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:22:24,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-07 01:22:24,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-11-07 01:22:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 120 states have (on average 1.775) internal successors, (213), 199 states have internal predecessors, (213), 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) [2021-11-07 01:22:24,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 213 transitions. [2021-11-07 01:22:24,789 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 213 transitions. Word has length 13 [2021-11-07 01:22:24,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:24,789 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 213 transitions. [2021-11-07 01:22:24,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 213 transitions. [2021-11-07 01:22:24,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:22:24,790 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:24,790 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:24,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:25,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:25,001 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:25,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:25,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1135762480, now seen corresponding path program 1 times [2021-11-07 01:22:25,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:25,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124223747] [2021-11-07 01:22:25,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:25,002 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:25,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:25,003 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:25,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:22:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:25,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:22:25,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:25,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:25,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:25,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:25,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124223747] [2021-11-07 01:22:25,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124223747] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:25,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:25,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:22:25,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388900850] [2021-11-07 01:22:25,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:22:25,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:25,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:22:25,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:25,260 INFO L87 Difference]: Start difference. First operand 200 states and 213 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:25,353 INFO L93 Difference]: Finished difference Result 200 states and 212 transitions. [2021-11-07 01:22:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:22:25,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 01:22:25,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:25,355 INFO L225 Difference]: With dead ends: 200 [2021-11-07 01:22:25,355 INFO L226 Difference]: Without dead ends: 200 [2021-11-07 01:22:25,355 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:22:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-07 01:22:25,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-11-07 01:22:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 120 states have (on average 1.7666666666666666) internal successors, (212), 199 states have internal predecessors, (212), 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) [2021-11-07 01:22:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2021-11-07 01:22:25,360 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 15 [2021-11-07 01:22:25,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:25,361 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2021-11-07 01:22:25,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2021-11-07 01:22:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:22:25,366 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:25,366 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:25,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:25,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:25,578 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:25,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:25,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2116860357, now seen corresponding path program 1 times [2021-11-07 01:22:25,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:25,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042259869] [2021-11-07 01:22:25,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:25,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:25,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:25,580 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:25,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:22:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:25,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:22:25,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:25,806 INFO L354 Elim1Store]: treesize reduction 13, result has 35.0 percent of original size [2021-11-07 01:22:25,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 22 [2021-11-07 01:22:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:26,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:26,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:26,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:26,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042259869] [2021-11-07 01:22:26,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042259869] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:26,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:26,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 01:22:26,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050521741] [2021-11-07 01:22:26,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:22:26,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:26,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:22:26,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:22:26,198 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-11-07 01:22:26,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:26,706 INFO L93 Difference]: Finished difference Result 218 states and 229 transitions. [2021-11-07 01:22:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:22:26,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) Word has length 21 [2021-11-07 01:22:26,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:26,708 INFO L225 Difference]: With dead ends: 218 [2021-11-07 01:22:26,708 INFO L226 Difference]: Without dead ends: 218 [2021-11-07 01:22:26,708 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:22:26,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-07 01:22:26,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 196. [2021-11-07 01:22:26,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 120 states have (on average 1.7333333333333334) internal successors, (208), 195 states have internal predecessors, (208), 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) [2021-11-07 01:22:26,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 208 transitions. [2021-11-07 01:22:26,713 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 208 transitions. Word has length 21 [2021-11-07 01:22:26,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:26,713 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 208 transitions. [2021-11-07 01:22:26,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-11-07 01:22:26,714 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 208 transitions. [2021-11-07 01:22:26,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:22:26,715 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:26,715 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:26,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:26,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:26,936 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:26,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:26,936 INFO L85 PathProgramCache]: Analyzing trace with hash -2116860356, now seen corresponding path program 1 times [2021-11-07 01:22:26,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:26,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526309608] [2021-11-07 01:22:26,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:26,937 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:26,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:26,937 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:26,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:22:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:27,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:22:27,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:27,171 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-07 01:22:27,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 20 treesize of output 21 [2021-11-07 01:22:27,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 [2021-11-07 01:22:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:27,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:27,576 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:27,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526309608] [2021-11-07 01:22:27,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526309608] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:27,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:27,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 01:22:27,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869659295] [2021-11-07 01:22:27,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:22:27,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:27,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:22:27,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:22:27,578 INFO L87 Difference]: Start difference. First operand 196 states and 208 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-11-07 01:22:29,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:29,360 INFO L93 Difference]: Finished difference Result 602 states and 642 transitions. [2021-11-07 01:22:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:22:29,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) Word has length 21 [2021-11-07 01:22:29,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:29,364 INFO L225 Difference]: With dead ends: 602 [2021-11-07 01:22:29,364 INFO L226 Difference]: Without dead ends: 602 [2021-11-07 01:22:29,365 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:22:29,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2021-11-07 01:22:29,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 257. [2021-11-07 01:22:29,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 181 states have (on average 1.7403314917127073) internal successors, (315), 256 states have internal predecessors, (315), 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) [2021-11-07 01:22:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 315 transitions. [2021-11-07 01:22:29,373 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 315 transitions. Word has length 21 [2021-11-07 01:22:29,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:29,376 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 315 transitions. [2021-11-07 01:22:29,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-11-07 01:22:29,376 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 315 transitions. [2021-11-07 01:22:29,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 01:22:29,377 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:29,377 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:29,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:29,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:29,586 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:29,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:29,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1511652654, now seen corresponding path program 1 times [2021-11-07 01:22:29,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:29,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948266201] [2021-11-07 01:22:29,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:29,587 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:29,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:29,588 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:29,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 01:22:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:29,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:22:29,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:29,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:29,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:29,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:29,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948266201] [2021-11-07 01:22:29,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948266201] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:29,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:29,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:22:29,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882660291] [2021-11-07 01:22:29,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:22:29,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:29,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:22:29,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:22:29,894 INFO L87 Difference]: Start difference. First operand 257 states and 315 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:29,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:29,924 INFO L93 Difference]: Finished difference Result 329 states and 389 transitions. [2021-11-07 01:22:29,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:22:29,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-07 01:22:29,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:29,927 INFO L225 Difference]: With dead ends: 329 [2021-11-07 01:22:29,927 INFO L226 Difference]: Without dead ends: 329 [2021-11-07 01:22:29,928 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:29,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-11-07 01:22:29,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 259. [2021-11-07 01:22:29,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 183 states have (on average 1.7322404371584699) internal successors, (317), 258 states have internal predecessors, (317), 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) [2021-11-07 01:22:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 317 transitions. [2021-11-07 01:22:29,942 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 317 transitions. Word has length 23 [2021-11-07 01:22:29,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:29,943 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 317 transitions. [2021-11-07 01:22:29,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 317 transitions. [2021-11-07 01:22:29,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:22:29,944 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:29,944 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:29,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:30,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:30,156 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:30,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:30,156 INFO L85 PathProgramCache]: Analyzing trace with hash -383407484, now seen corresponding path program 1 times [2021-11-07 01:22:30,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:30,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615715217] [2021-11-07 01:22:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:30,157 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:30,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:30,158 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:30,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 01:22:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:30,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:22:30,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:30,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:30,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:30,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:30,941 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:30,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615715217] [2021-11-07 01:22:30,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615715217] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:30,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:30,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 9 [2021-11-07 01:22:30,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250036904] [2021-11-07 01:22:30,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:22:30,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:30,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:22:30,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:22:30,943 INFO L87 Difference]: Start difference. First operand 259 states and 317 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:31,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:31,135 INFO L93 Difference]: Finished difference Result 257 states and 314 transitions. [2021-11-07 01:22:31,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:22:31,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 01:22:31,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:31,144 INFO L225 Difference]: With dead ends: 257 [2021-11-07 01:22:31,144 INFO L226 Difference]: Without dead ends: 257 [2021-11-07 01:22:31,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:22:31,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-11-07 01:22:31,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2021-11-07 01:22:31,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 183 states have (on average 1.715846994535519) internal successors, (314), 256 states have internal predecessors, (314), 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) [2021-11-07 01:22:31,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 314 transitions. [2021-11-07 01:22:31,152 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 314 transitions. Word has length 24 [2021-11-07 01:22:31,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:31,152 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 314 transitions. [2021-11-07 01:22:31,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:31,153 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 314 transitions. [2021-11-07 01:22:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 01:22:31,154 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:31,154 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:31,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:31,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:31,366 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:31,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:31,366 INFO L85 PathProgramCache]: Analyzing trace with hash 836695302, now seen corresponding path program 1 times [2021-11-07 01:22:31,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:31,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78526416] [2021-11-07 01:22:31,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:31,367 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:31,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:31,368 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:31,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-07 01:22:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:31,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:22:31,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:31,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:31,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:31,718 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:31,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78526416] [2021-11-07 01:22:31,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78526416] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:31,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:31,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:22:31,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336167827] [2021-11-07 01:22:31,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:22:31,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:31,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:22:31,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:22:31,721 INFO L87 Difference]: Start difference. First operand 257 states and 314 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-11-07 01:22:31,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:31,762 INFO L93 Difference]: Finished difference Result 313 states and 370 transitions. [2021-11-07 01:22:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:22:31,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) Word has length 28 [2021-11-07 01:22:31,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:31,766 INFO L225 Difference]: With dead ends: 313 [2021-11-07 01:22:31,766 INFO L226 Difference]: Without dead ends: 313 [2021-11-07 01:22:31,766 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:22:31,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-11-07 01:22:31,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 259. [2021-11-07 01:22:31,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 185 states have (on average 1.7081081081081082) internal successors, (316), 258 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) [2021-11-07 01:22:31,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 316 transitions. [2021-11-07 01:22:31,777 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 316 transitions. Word has length 28 [2021-11-07 01:22:31,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:31,777 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 316 transitions. [2021-11-07 01:22:31,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-11-07 01:22:31,778 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 316 transitions. [2021-11-07 01:22:31,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:22:31,779 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:31,779 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:31,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:31,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:31,986 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr68REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:31,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:31,986 INFO L85 PathProgramCache]: Analyzing trace with hash 905374797, now seen corresponding path program 1 times [2021-11-07 01:22:31,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:31,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234048500] [2021-11-07 01:22:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:31,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:31,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:31,988 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:31,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-07 01:22:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:32,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 01:22:32,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:32,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-07 01:22:32,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:22:32,520 INFO L354 Elim1Store]: treesize reduction 27, result has 42.6 percent of original size [2021-11-07 01:22:32,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 35 [2021-11-07 01:22:33,511 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-07 01:22:33,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 58 [2021-11-07 01:22:33,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:33,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:40,874 INFO L354 Elim1Store]: treesize reduction -1, result has 104.0 percent of original size [2021-11-07 01:22:40,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 218 treesize of output 231 [2021-11-07 01:22:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:22:43,435 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:43,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234048500] [2021-11-07 01:22:43,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234048500] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:43,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:43,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 20 [2021-11-07 01:22:43,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002914179] [2021-11-07 01:22:43,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-07 01:22:43,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:43,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-07 01:22:43,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=363, Unknown=4, NotChecked=0, Total=462 [2021-11-07 01:22:43,437 INFO L87 Difference]: Start difference. First operand 259 states and 316 transitions. Second operand has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 21 states have internal predecessors, (60), 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) [2021-11-07 01:22:57,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:57,393 INFO L93 Difference]: Finished difference Result 405 states and 466 transitions. [2021-11-07 01:22:57,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 01:22:57,394 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 21 states have internal predecessors, (60), 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) Word has length 30 [2021-11-07 01:22:57,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:57,396 INFO L225 Difference]: With dead ends: 405 [2021-11-07 01:22:57,396 INFO L226 Difference]: Without dead ends: 405 [2021-11-07 01:22:57,397 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=248, Invalid=740, Unknown=4, NotChecked=0, Total=992 [2021-11-07 01:22:57,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-07 01:22:57,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 267. [2021-11-07 01:22:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 193 states have (on average 1.7046632124352332) internal successors, (329), 266 states have internal predecessors, (329), 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) [2021-11-07 01:22:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 329 transitions. [2021-11-07 01:22:57,404 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 329 transitions. Word has length 30 [2021-11-07 01:22:57,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:57,404 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 329 transitions. [2021-11-07 01:22:57,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 21 states have internal predecessors, (60), 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) [2021-11-07 01:22:57,405 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 329 transitions. [2021-11-07 01:22:57,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:22:57,405 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:57,405 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:57,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:57,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:57,618 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr69REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:22:57,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:57,618 INFO L85 PathProgramCache]: Analyzing trace with hash 905374798, now seen corresponding path program 1 times [2021-11-07 01:22:57,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:57,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788470604] [2021-11-07 01:22:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:57,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:57,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:57,620 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:57,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-07 01:22:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:57,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-07 01:22:57,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:57,958 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-07 01:22:57,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 22 treesize of output 23 [2021-11-07 01:22:57,989 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-11-07 01:22:57,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 36 [2021-11-07 01:22:58,208 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-07 01:22:58,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 58 [2021-11-07 01:22:58,253 INFO L354 Elim1Store]: treesize reduction 18, result has 63.3 percent of original size [2021-11-07 01:22:58,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 69 [2021-11-07 01:22:59,036 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-07 01:22:59,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 32 treesize of output 40 [2021-11-07 01:22:59,049 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:22:59,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 37 treesize of output 37 [2021-11-07 01:23:01,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:01,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:03,765 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-07 01:23:03,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 35 [2021-11-07 01:23:05,605 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_hid_open_report_~#item~0.base_23| (_ BitVec 32))) (or (= c_ULTIMATE.start_probe_23_~dev.base |v_ULTIMATE.start_hid_open_report_~#item~0.base_23|) (and (forall ((|v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_14| (_ BitVec 32))) (bvule (bvadd (_ bv4 32) |c_~#dev~0.offset|) (select (store (store |c_#length| |v_ULTIMATE.start_hid_open_report_~#item~0.base_23| (_ bv16 32)) |v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_14| (_ bv8 32)) |c_~#dev~0.base|))) (bvule |c_~#dev~0.offset| (bvadd (_ bv4 32) |c_~#dev~0.offset|))))) is different from false [2021-11-07 01:23:16,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:16,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:16,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788470604] [2021-11-07 01:23:16,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788470604] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:16,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:16,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 14 [2021-11-07 01:23:16,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475619434] [2021-11-07 01:23:16,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 01:23:16,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:16,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 01:23:16,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=152, Unknown=6, NotChecked=26, Total=240 [2021-11-07 01:23:16,614 INFO L87 Difference]: Start difference. First operand 267 states and 329 transitions. Second operand has 16 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 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) [2021-11-07 01:23:18,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:23:18,992 INFO L93 Difference]: Finished difference Result 287 states and 346 transitions. [2021-11-07 01:23:18,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:23:18,994 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 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) Word has length 30 [2021-11-07 01:23:18,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:23:18,995 INFO L225 Difference]: With dead ends: 287 [2021-11-07 01:23:18,995 INFO L226 Difference]: Without dead ends: 287 [2021-11-07 01:23:18,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=141, Invalid=319, Unknown=6, NotChecked=40, Total=506 [2021-11-07 01:23:18,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-07 01:23:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 265. [2021-11-07 01:23:19,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 193 states have (on average 1.6839378238341969) internal successors, (325), 264 states have internal predecessors, (325), 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) [2021-11-07 01:23:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 325 transitions. [2021-11-07 01:23:19,003 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 325 transitions. Word has length 30 [2021-11-07 01:23:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:23:19,003 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 325 transitions. [2021-11-07 01:23:19,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 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) [2021-11-07 01:23:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 325 transitions. [2021-11-07 01:23:19,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:23:19,004 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:19,004 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:23:19,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-07 01:23:19,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:23:19,222 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:23:19,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:19,222 INFO L85 PathProgramCache]: Analyzing trace with hash 905376878, now seen corresponding path program 1 times [2021-11-07 01:23:19,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:19,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827099827] [2021-11-07 01:23:19,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:19,223 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:19,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:19,223 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:19,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-07 01:23:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:19,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:23:19,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:19,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:19,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:19,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:19,681 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:19,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827099827] [2021-11-07 01:23:19,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827099827] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:19,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:19,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:23:19,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31649384] [2021-11-07 01:23:19,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:23:19,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:19,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:23:19,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:23:19,683 INFO L87 Difference]: Start difference. First operand 265 states and 325 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:19,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:23:19,720 INFO L93 Difference]: Finished difference Result 267 states and 324 transitions. [2021-11-07 01:23:19,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:23:19,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-07 01:23:19,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:23:19,723 INFO L225 Difference]: With dead ends: 267 [2021-11-07 01:23:19,723 INFO L226 Difference]: Without dead ends: 267 [2021-11-07 01:23:19,723 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:23:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-11-07 01:23:19,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 265. [2021-11-07 01:23:19,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 193 states have (on average 1.6735751295336787) internal successors, (323), 264 states have internal predecessors, (323), 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) [2021-11-07 01:23:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 323 transitions. [2021-11-07 01:23:19,730 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 323 transitions. Word has length 30 [2021-11-07 01:23:19,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:23:19,730 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 323 transitions. [2021-11-07 01:23:19,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 323 transitions. [2021-11-07 01:23:19,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:23:19,731 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:19,732 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:23:19,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-07 01:23:19,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:23:19,932 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:23:19,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:19,932 INFO L85 PathProgramCache]: Analyzing trace with hash -507245845, now seen corresponding path program 1 times [2021-11-07 01:23:19,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:19,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042052276] [2021-11-07 01:23:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:19,933 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:19,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:19,934 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:19,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-07 01:23:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:20,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:23:20,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:20,358 INFO L354 Elim1Store]: treesize reduction 13, result has 35.0 percent of original size [2021-11-07 01:23:20,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 9 treesize of output 13 [2021-11-07 01:23:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:20,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:20,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:20,591 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:20,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042052276] [2021-11-07 01:23:20,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042052276] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:20,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:20,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:23:20,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110835673] [2021-11-07 01:23:20,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:23:20,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:20,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:23:20,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:23:20,593 INFO L87 Difference]: Start difference. First operand 265 states and 323 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:23:21,215 INFO L93 Difference]: Finished difference Result 299 states and 355 transitions. [2021-11-07 01:23:21,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:23:21,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-07 01:23:21,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:23:21,218 INFO L225 Difference]: With dead ends: 299 [2021-11-07 01:23:21,218 INFO L226 Difference]: Without dead ends: 299 [2021-11-07 01:23:21,218 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:23:21,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-11-07 01:23:21,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 263. [2021-11-07 01:23:21,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 193 states have (on average 1.6424870466321244) internal successors, (317), 262 states have internal predecessors, (317), 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) [2021-11-07 01:23:21,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 317 transitions. [2021-11-07 01:23:21,225 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 317 transitions. Word has length 30 [2021-11-07 01:23:21,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:23:21,225 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 317 transitions. [2021-11-07 01:23:21,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:23:21,226 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 317 transitions. [2021-11-07 01:23:21,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:23:21,226 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:21,226 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:23:21,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-07 01:23:21,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:23:21,440 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:23:21,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:21,440 INFO L85 PathProgramCache]: Analyzing trace with hash -507245844, now seen corresponding path program 1 times [2021-11-07 01:23:21,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:21,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207839257] [2021-11-07 01:23:21,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:21,441 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:21,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:21,442 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:21,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-07 01:23:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:21,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:23:21,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:21,870 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-07 01:23:21,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-07 01:23:22,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:22,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:22,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:22,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207839257] [2021-11-07 01:23:22,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207839257] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:22,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:22,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-07 01:23:22,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982718633] [2021-11-07 01:23:22,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:23:22,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:22,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:23:22,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:23:22,611 INFO L87 Difference]: Start difference. First operand 263 states and 317 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 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) [2021-11-07 01:23:23,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:23:23,490 INFO L93 Difference]: Finished difference Result 331 states and 384 transitions. [2021-11-07 01:23:23,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:23:23,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 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) Word has length 30 [2021-11-07 01:23:23,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:23:23,493 INFO L225 Difference]: With dead ends: 331 [2021-11-07 01:23:23,493 INFO L226 Difference]: Without dead ends: 331 [2021-11-07 01:23:23,493 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:23:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2021-11-07 01:23:23,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 261. [2021-11-07 01:23:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 193 states have (on average 1.61139896373057) internal successors, (311), 260 states have internal predecessors, (311), 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) [2021-11-07 01:23:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 311 transitions. [2021-11-07 01:23:23,500 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 311 transitions. Word has length 30 [2021-11-07 01:23:23,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:23:23,500 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 311 transitions. [2021-11-07 01:23:23,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 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) [2021-11-07 01:23:23,501 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 311 transitions. [2021-11-07 01:23:23,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:23:23,501 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:23,501 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:23:23,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-11-07 01:23:23,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:23:23,715 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 89 more)] === [2021-11-07 01:23:23,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:23,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1813174386, now seen corresponding path program 1 times [2021-11-07 01:23:23,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:23,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740003489] [2021-11-07 01:23:23,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:23,716 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:23,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:23,716 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:23,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-07 01:23:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:24,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-07 01:23:24,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:24,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-07 01:23:24,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 17 [2021-11-07 01:23:24,506 INFO L354 Elim1Store]: treesize reduction 83, result has 30.3 percent of original size [2021-11-07 01:23:24,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 62 [2021-11-07 01:23:25,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:25,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 40 [2021-11-07 01:23:25,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:25,342 INFO L354 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2021-11-07 01:23:25,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 33 [2021-11-07 01:23:26,069 INFO L354 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2021-11-07 01:23:26,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 84 [2021-11-07 01:23:27,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 82 treesize of output 66 [2021-11-07 01:23:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:27,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:27,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:27,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-07 01:23:37,415 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_hid_open_report_~device.base (_ BitVec 32)) (|v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_17| (_ BitVec 32)) (ULTIMATE.start_hid_open_report_~parser~0.offset (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_hid_open_report_~#item~0.base_28| (_ BitVec 32))) (let ((.cse0 (store |c_#valid| |v_ULTIMATE.start_hid_open_report_~#item~0.base_28| (_ bv1 1)))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_hid_open_report_~#item~0.base_28|))))))) (not (bvult |v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_17| |c_#StackHeapBarrier|)) (not (= (_ bv0 1) (bvneg (select .cse0 |v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_17|)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store (store .cse0 |v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_17| (_ bv0 1)) |v_ULTIMATE.start_hid_open_report_~#item~0.base_28| (_ bv0 1)) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_17| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_17|) ULTIMATE.start_hid_open_report_~parser~0.offset ULTIMATE.start_hid_open_report_~device.base) (bvadd (_ bv4 32) ULTIMATE.start_hid_open_report_~parser~0.offset) v_DerPreprocessor_1) (bvadd ULTIMATE.start_hid_open_report_~parser~0.offset (_ bv5 32)) v_DerPreprocessor_2) (bvadd (_ bv6 32) ULTIMATE.start_hid_open_report_~parser~0.offset) v_DerPreprocessor_3) (bvadd ULTIMATE.start_hid_open_report_~parser~0.offset (_ bv7 32)) v_DerPreprocessor_4)) |c_~#dev~0.base|) |c_~#dev~0.offset|)))))))))))))) (_ bv1 1)))))) is different from false [2021-11-07 01:23:37,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 832382 treesize of output 831358 [2021-11-07 01:23:39,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:39,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740003489] [2021-11-07 01:23:39,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 01:23:39,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1470983930] [2021-11-07 01:23:39,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:39,325 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:23:39,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:23:39,330 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:23:39,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-11-07 01:23:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:40,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-07 01:23:40,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:40,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-07 01:23:40,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 24 treesize of output 20 [2021-11-07 01:23:41,194 INFO L354 Elim1Store]: treesize reduction 71, result has 28.3 percent of original size [2021-11-07 01:23:41,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 49 [2021-11-07 01:23:42,462 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-07 01:23:42,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 62 treesize of output 53 [2021-11-07 01:23:42,895 INFO L354 Elim1Store]: treesize reduction 360, result has 1.9 percent of original size [2021-11-07 01:23:42,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 103 treesize of output 46 [2021-11-07 01:23:43,467 INFO L354 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2021-11-07 01:23:43,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 82 [2021-11-07 01:23:45,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 76 treesize of output 60 [2021-11-07 01:23:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:46,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:46,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:46,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-07 01:24:52,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 49160 treesize of output 49096 [2021-11-07 01:24:53,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 01:24:53,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392018649] [2021-11-07 01:24:53,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:53,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:24:53,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:24:53,038 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:24:53,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-07 01:24:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:53,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-07 01:24:53,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:54,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 17 [2021-11-07 01:24:54,768 INFO L354 Elim1Store]: treesize reduction 130, result has 28.6 percent of original size [2021-11-07 01:24:54,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 53 treesize of output 88 [2021-11-07 01:24:55,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 43 [2021-11-07 01:24:56,171 INFO L354 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2021-11-07 01:24:56,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 38 [2021-11-07 01:24:57,009 INFO L354 Elim1Store]: treesize reduction 155, result has 14.8 percent of original size [2021-11-07 01:24:57,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 112 [2021-11-07 01:24:58,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 99 treesize of output 83 [2021-11-07 01:24:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:24:59,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:59,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:24:59,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-07 01:25:15,902 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_hid_open_report_~device.base (_ BitVec 32)) (v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (|v_ULTIMATE.start_hid_open_report_~#item~0.base_34| (_ BitVec 32)) (ULTIMATE.start_hid_open_report_~parser~0.offset (_ BitVec 32)) (|v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_19| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (store |c_#valid| |v_ULTIMATE.start_hid_open_report_~#item~0.base_34| (_ bv1 1)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_hid_open_report_~#item~0.base_34|))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store (store .cse0 |v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_19| (_ bv0 1)) |v_ULTIMATE.start_hid_open_report_~#item~0.base_34| (_ bv0 1)) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_19| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_19|) ULTIMATE.start_hid_open_report_~parser~0.offset ULTIMATE.start_hid_open_report_~device.base) (bvadd (_ bv4 32) ULTIMATE.start_hid_open_report_~parser~0.offset) v_DerPreprocessor_5) (bvadd ULTIMATE.start_hid_open_report_~parser~0.offset (_ bv5 32)) v_DerPreprocessor_6) (bvadd (_ bv6 32) ULTIMATE.start_hid_open_report_~parser~0.offset) v_DerPreprocessor_7) (bvadd ULTIMATE.start_hid_open_report_~parser~0.offset (_ bv7 32)) v_DerPreprocessor_8)) |c_~#dev~0.base|) |c_~#dev~0.offset|))))))))))) (not (= (_ bv0 1) (bvneg (bvneg (select .cse0 |v_ULTIMATE.start_ldv_zalloc_#t~malloc13.base_19|)))))))) is different from false [2021-11-07 01:25:15,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 93163 treesize of output 93035 [2021-11-07 01:25:16,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 01:25:16,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:16,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 01:25:16,163 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-07 01:25:16,163 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 01:25:16,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70REQUIRES_VIOLATION [2021-11-07 01:25:16,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-11-07 01:25:16,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-11-07 01:25:16,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-11-07 01:25:16,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-11-07 01:25:16,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-11-07 01:25:16,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-11-07 01:25:16,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-11-07 01:25:16,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-11-07 01:25:16,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-11-07 01:25:16,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-11-07 01:25:16,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-11-07 01:25:16,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-11-07 01:25:16,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-11-07 01:25:16,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-11-07 01:25:16,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-11-07 01:25:16,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-11-07 01:25:16,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-11-07 01:25:16,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-11-07 01:25:16,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-11-07 01:25:16,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-11-07 01:25:16,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-11-07 01:25:16,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-11-07 01:25:16,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-11-07 01:25:16,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-11-07 01:25:16,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-11-07 01:25:16,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-11-07 01:25:16,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-11-07 01:25:16,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-11-07 01:25:16,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-11-07 01:25:16,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-11-07 01:25:16,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-11-07 01:25:16,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-11-07 01:25:16,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-11-07 01:25:16,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-11-07 01:25:16,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-11-07 01:25:16,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-11-07 01:25:16,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-11-07 01:25:16,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-11-07 01:25:16,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-11-07 01:25:16,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-11-07 01:25:16,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-11-07 01:25:16,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-11-07 01:25:16,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-11-07 01:25:16,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-11-07 01:25:16,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-11-07 01:25:16,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-11-07 01:25:16,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-11-07 01:25:16,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50REQUIRES_VIOLATION [2021-11-07 01:25:16,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51REQUIRES_VIOLATION [2021-11-07 01:25:16,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATION [2021-11-07 01:25:16,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATION [2021-11-07 01:25:16,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54REQUIRES_VIOLATION [2021-11-07 01:25:16,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATION [2021-11-07 01:25:16,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATION [2021-11-07 01:25:16,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60REQUIRES_VIOLATION [2021-11-07 01:25:16,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61REQUIRES_VIOLATION [2021-11-07 01:25:16,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68REQUIRES_VIOLATION [2021-11-07 01:25:16,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69REQUIRES_VIOLATION [2021-11-07 01:25:16,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71REQUIRES_VIOLATION [2021-11-07 01:25:16,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72REQUIRES_VIOLATION [2021-11-07 01:25:16,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73REQUIRES_VIOLATION [2021-11-07 01:25:16,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74REQUIRES_VIOLATION [2021-11-07 01:25:16,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75REQUIRES_VIOLATION [2021-11-07 01:25:16,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76REQUIRES_VIOLATION [2021-11-07 01:25:16,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77REQUIRES_VIOLATION [2021-11-07 01:25:16,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78REQUIRES_VIOLATION [2021-11-07 01:25:16,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79REQUIRES_VIOLATION [2021-11-07 01:25:16,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80REQUIRES_VIOLATION [2021-11-07 01:25:16,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81REQUIRES_VIOLATION [2021-11-07 01:25:16,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr85REQUIRES_VIOLATION [2021-11-07 01:25:16,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr86REQUIRES_VIOLATION [2021-11-07 01:25:16,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr87REQUIRES_VIOLATION [2021-11-07 01:25:16,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr88REQUIRES_VIOLATION [2021-11-07 01:25:16,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr90ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr91ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 01:25:16,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_LEAK [2021-11-07 01:25:16,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:16,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-11-07 01:25:16,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2021-11-07 01:25:16,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:25:16,805 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:16,809 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:25:16,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:25:16 BoogieIcfgContainer [2021-11-07 01:25:16,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:25:16,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:25:16,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:25:16,822 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:25:16,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:22:04" (3/4) ... [2021-11-07 01:25:16,826 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 01:25:16,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:25:16,827 INFO L168 Benchmark]: Toolchain (without parser) took 195183.61 ms. Allocated memory was 62.9 MB in the beginning and 249.6 MB in the end (delta: 186.6 MB). Free memory was 42.2 MB in the beginning and 180.0 MB in the end (delta: -137.8 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:16,827 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 62.9 MB. Free memory is still 44.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:25:16,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 968.68 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 24.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:16,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.05 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 24.9 MB in the beginning and 65.7 MB in the end (delta: -40.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:16,828 INFO L168 Benchmark]: Boogie Preprocessor took 92.28 ms. Allocated memory is still 83.9 MB. Free memory was 65.3 MB in the beginning and 62.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:16,829 INFO L168 Benchmark]: RCFGBuilder took 1564.64 ms. Allocated memory is still 83.9 MB. Free memory was 62.3 MB in the beginning and 55.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:16,829 INFO L168 Benchmark]: TraceAbstraction took 192431.16 ms. Allocated memory was 83.9 MB in the beginning and 249.6 MB in the end (delta: 165.7 MB). Free memory was 54.6 MB in the beginning and 181.1 MB in the end (delta: -126.5 MB). Peak memory consumption was 148.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:16,830 INFO L168 Benchmark]: Witness Printer took 3.93 ms. Allocated memory is still 249.6 MB. Free memory was 181.1 MB in the beginning and 180.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:25:16,834 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 62.9 MB. Free memory is still 44.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 968.68 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 24.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.05 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 24.9 MB in the beginning and 65.7 MB in the end (delta: -40.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.28 ms. Allocated memory is still 83.9 MB. Free memory was 65.3 MB in the beginning and 62.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1564.64 ms. Allocated memory is still 83.9 MB. Free memory was 62.3 MB in the beginning and 55.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 192431.16 ms. Allocated memory was 83.9 MB in the beginning and 249.6 MB in the end (delta: 165.7 MB). Free memory was 54.6 MB in the beginning and 181.1 MB in the end (delta: -126.5 MB). Peak memory consumption was 148.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.93 ms. Allocated memory is still 249.6 MB. Free memory was 181.1 MB in the beginning and 180.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L857] struct hid_device dev; [L840] int ret = - -3; [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L841] struct hid_report_enum *p = (struct hid_report_enum *)ldv_malloc(sizeof(struct hid_report_enum)); [L842] COND FALSE !(p==0) [L540] list->next = list [L541] list->prev = list [L845] dev->report_enum = p [L814] struct hid_parser *parser; [L815] struct hid_item item; [L533] return calloc(size, 1); [L816] parser = ldv_zalloc(sizeof(struct hid_parser)) [L817] COND FALSE !(!parser) [L820] parser->device = device [L519] int r = __VERIFIER_nondet_int(); [L520] COND TRUE r>0 [L520] return r; [L821] parser->report_id = ldv_positive() [L778] COND TRUE __VERIFIER_nondet_int() [L779] return -1; [L822] COND FALSE !(fetch_item(&item)!=-1) [L828] free(parser) [L828] free(parser) [L828] free(parser) [L829] return 0; [L829] return 0; [L846] ret = hid_open_report(dev) [L847] COND FALSE !(ret<0) [L849] return 0; [L859] int ret = probe_23(&dev); [L860] COND TRUE ret==0 [L836] dev->report_enum [L806] struct hid_report *p; [L807] struct hid_report *n; [L808] (&report_enum->report_list)->next - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 845]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 845]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 820]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 820]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 821]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 821]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 802]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 802]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 802]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 802]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 792]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 792]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 797]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 797]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 831]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 831]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 208 locations, 93 error locations. Started 1 CEGAR loops. OverallTime: 192.3s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 28.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3471 SDtfs, 12532 SDslu, 5783 SDs, 0 SdLazy, 4077 SolverSat, 204 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 23.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 750 GetRequests, 567 SyntacticMatches, 8 SemanticMatches, 175 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 33.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred in iteration=17, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 1525 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 57.1s InterpolantComputationTime, 398 NumberOfCodeBlocks, 398 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 721 ConstructedInterpolants, 130 QuantifiedInterpolants, 7886 SizeOfPredicates, 135 NumberOfNonLiveVariables, 2200 ConjunctsInSsa, 184 ConjunctsInUnsatCore, 43 InterpolantComputations, 43 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 01:25:16,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a1667be-2979-4b09-ad5f-712d551628d2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN