./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/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_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:20:38,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:20:38,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:20:38,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:20:38,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:20:38,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:20:38,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:20:38,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:20:38,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:20:38,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:20:38,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:20:38,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:20:38,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:20:38,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:20:38,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:20:38,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:20:38,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:20:38,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:20:38,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:20:38,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:20:38,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:20:38,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:20:38,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:20:38,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:20:39,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:20:39,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:20:39,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:20:39,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:20:39,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:20:39,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:20:39,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:20:39,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:20:39,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:20:39,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:20:39,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:20:39,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:20:39,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:20:39,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:20:39,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:20:39,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:20:39,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:20:39,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:20:39,063 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:20:39,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:20:39,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:20:39,065 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:20:39,065 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:20:39,065 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:20:39,066 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:20:39,066 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:20:39,066 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:20:39,066 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:20:39,067 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:20:39,067 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:20:39,067 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:20:39,067 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:20:39,068 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:20:39,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:20:39,069 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:20:39,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:20:39,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:20:39,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:20:39,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:20:39,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:20:39,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:20:39,072 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:20:39,072 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:20:39,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:20:39,073 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:20:39,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:20:39,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:20:39,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:20:39,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:20:39,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:20:39,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:20:39,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:20:39,077 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:20:39,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:20:39,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:20:39,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:20:39,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:20:39,080 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_8851f146-7a16-4389-b17c-a4ba368de2cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 [2021-11-07 01:20:39,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:20:39,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:20:39,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:20:39,461 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:20:39,461 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:20:39,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2021-11-07 01:20:39,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/data/82d80d5ae/2e29d7ed4c044b70bfe175bf2e0dc0fe/FLAG5dfb4cf5b [2021-11-07 01:20:40,204 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:20:40,205 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2021-11-07 01:20:40,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/data/82d80d5ae/2e29d7ed4c044b70bfe175bf2e0dc0fe/FLAG5dfb4cf5b [2021-11-07 01:20:40,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/data/82d80d5ae/2e29d7ed4c044b70bfe175bf2e0dc0fe [2021-11-07 01:20:40,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:20:40,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:20:40,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:20:40,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:20:40,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:20:40,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:20:40" (1/1) ... [2021-11-07 01:20:40,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b7f309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:40, skipping insertion in model container [2021-11-07 01:20:40,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:20:40" (1/1) ... [2021-11-07 01:20:40,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:20:40,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:20:40,910 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2021-11-07 01:20:41,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:20:41,328 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 01:20:41,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d9b81a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:41, skipping insertion in model container [2021-11-07 01:20:41,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:20:41,330 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:20:41,333 INFO L168 Benchmark]: Toolchain (without parser) took 905.78 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 58.7 MB in the beginning and 62.9 MB in the end (delta: -4.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:20:41,335 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 81.8 MB. Free memory was 58.2 MB in the beginning and 58.2 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:20:41,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 890.69 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 58.6 MB in the beginning and 62.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:20:41,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 81.8 MB. Free memory was 58.2 MB in the beginning and 58.2 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 890.69 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 58.6 MB in the beginning and 62.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3126]: 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_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/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_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:20:43,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:20:43,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:20:43,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:20:43,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:20:43,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:20:43,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:20:43,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:20:43,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:20:43,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:20:43,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:20:43,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:20:43,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:20:43,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:20:43,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:20:43,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:20:43,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:20:43,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:20:43,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:20:43,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:20:43,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:20:43,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:20:43,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:20:43,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:20:43,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:20:43,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:20:43,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:20:43,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:20:43,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:20:43,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:20:43,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:20:43,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:20:43,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:20:43,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:20:43,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:20:43,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:20:43,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:20:43,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:20:43,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:20:43,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:20:43,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:20:43,916 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:20:43,965 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:20:43,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:20:43,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:20:43,968 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:20:43,968 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:20:43,968 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:20:43,969 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:20:43,969 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:20:43,969 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:20:43,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:20:43,972 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:20:43,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:20:43,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:20:43,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:20:43,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:20:43,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:20:43,974 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:20:43,974 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:20:43,974 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:20:43,975 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:20:43,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:20:43,975 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:20:43,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:20:43,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:20:43,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:20:43,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:20:43,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:20:43,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:20:43,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:20:43,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:20:43,978 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:20:43,978 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:20:43,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:20:43,979 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:20:43,979 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:20:43,980 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_8851f146-7a16-4389-b17c-a4ba368de2cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 [2021-11-07 01:20:44,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:20:44,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:20:44,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:20:44,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:20:44,402 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:20:44,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2021-11-07 01:20:44,489 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/data/496d3a7c6/98bbee1393ff4ecb9212b77ded7f687b/FLAGf1d001bec [2021-11-07 01:20:45,340 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:20:45,343 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2021-11-07 01:20:45,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/data/496d3a7c6/98bbee1393ff4ecb9212b77ded7f687b/FLAGf1d001bec [2021-11-07 01:20:45,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/data/496d3a7c6/98bbee1393ff4ecb9212b77ded7f687b [2021-11-07 01:20:45,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:20:45,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:20:45,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:20:45,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:20:45,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:20:45,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:20:45" (1/1) ... [2021-11-07 01:20:45,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fce15e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:45, skipping insertion in model container [2021-11-07 01:20:45,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:20:45" (1/1) ... [2021-11-07 01:20:45,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:20:45,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:20:46,102 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2021-11-07 01:20:46,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:20:46,443 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:20:46,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:20:46,524 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2021-11-07 01:20:46,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:20:46,696 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:20:46,740 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2021-11-07 01:20:46,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:20:46,904 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:20:46,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46 WrapperNode [2021-11-07 01:20:46,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:20:46,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:20:46,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:20:46,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:20:46,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (1/1) ... [2021-11-07 01:20:47,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (1/1) ... [2021-11-07 01:20:53,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:20:53,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:20:53,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:20:53,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:20:53,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (1/1) ... [2021-11-07 01:20:53,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (1/1) ... [2021-11-07 01:20:54,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (1/1) ... [2021-11-07 01:20:54,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (1/1) ... [2021-11-07 01:20:57,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (1/1) ... [2021-11-07 01:20:58,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (1/1) ... [2021-11-07 01:20:58,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (1/1) ... [2021-11-07 01:20:59,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:20:59,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:20:59,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:20:59,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:20:59,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (1/1) ... [2021-11-07 01:20:59,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:20:59,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:20:59,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:20:59,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:20:59,539 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-07 01:20:59,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:20:59,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:20:59,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:20:59,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:22:16,703 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:22:16,703 INFO L299 CfgBuilder]: Removed 37403 assume(true) statements. [2021-11-07 01:22:16,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:22:16 BoogieIcfgContainer [2021-11-07 01:22:16,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:22:16,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:22:16,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:22:16,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:22:16,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:20:45" (1/3) ... [2021-11-07 01:22:16,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f1ecf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:22:16, skipping insertion in model container [2021-11-07 01:22:16,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:46" (2/3) ... [2021-11-07 01:22:16,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f1ecf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:22:16, skipping insertion in model container [2021-11-07 01:22:16,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:22:16" (3/3) ... [2021-11-07 01:22:16,761 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_productSimulator.cil.c [2021-11-07 01:22:16,767 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:22:16,768 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 128 error locations. [2021-11-07 01:22:16,947 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:22:16,955 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 01:22:16,956 INFO L340 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2021-11-07 01:22:17,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 36116 states, 35987 states have (on average 1.6031066774112874) internal successors, (57691), 36115 states have internal predecessors, (57691), 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 01:22:17,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:22:17,582 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:17,583 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, 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 01:22:17,584 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-07 01:22:17,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:17,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1844169582, now seen corresponding path program 1 times [2021-11-07 01:22:17,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:17,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989778626] [2021-11-07 01:22:17,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:17,617 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:17,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:17,625 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:17,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:22:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:18,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:22:18,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:18,599 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 01:22:18,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:18,809 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 01:22:18,810 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:18,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989778626] [2021-11-07 01:22:18,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989778626] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:18,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:18,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:22:18,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752241395] [2021-11-07 01:22:18,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:22:18,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:18,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:22:18,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:22:18,909 INFO L87 Difference]: Start difference. First operand has 36116 states, 35987 states have (on average 1.6031066774112874) internal successors, (57691), 36115 states have internal predecessors, (57691), 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 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 01:22:20,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:20,652 INFO L93 Difference]: Finished difference Result 71897 states and 114770 transitions. [2021-11-07 01:22:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:22:20,654 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 58 [2021-11-07 01:22:20,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:20,913 INFO L225 Difference]: With dead ends: 71897 [2021-11-07 01:22:20,913 INFO L226 Difference]: Without dead ends: 25936 [2021-11-07 01:22:21,022 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:22:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25936 states. [2021-11-07 01:22:22,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25936 to 25936. [2021-11-07 01:22:22,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25936 states, 25808 states have (on average 1.6033787972721636) internal successors, (41380), 25935 states have internal predecessors, (41380), 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 01:22:22,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25936 states to 25936 states and 41380 transitions. [2021-11-07 01:22:22,808 INFO L78 Accepts]: Start accepts. Automaton has 25936 states and 41380 transitions. Word has length 58 [2021-11-07 01:22:22,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:22,811 INFO L470 AbstractCegarLoop]: Abstraction has 25936 states and 41380 transitions. [2021-11-07 01:22:22,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 01:22:22,811 INFO L276 IsEmpty]: Start isEmpty. Operand 25936 states and 41380 transitions. [2021-11-07 01:22:22,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 01:22:22,824 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:22,824 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, 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 01:22:22,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:23,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:23,038 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-07 01:22:23,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:23,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1829635949, now seen corresponding path program 1 times [2021-11-07 01:22:23,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:23,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516697764] [2021-11-07 01:22:23,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:23,041 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:23,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:23,044 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:23,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:22:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:23,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:22:23,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:23,861 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 01:22:23,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:24,081 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 01:22:24,082 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:24,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516697764] [2021-11-07 01:22:24,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516697764] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:24,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:24,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:22:24,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398633116] [2021-11-07 01:22:24,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:22:24,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:24,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:22:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:24,092 INFO L87 Difference]: Start difference. First operand 25936 states and 41380 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 01:22:26,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:26,086 INFO L93 Difference]: Finished difference Result 51847 states and 82722 transitions. [2021-11-07 01:22:26,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:22:26,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2021-11-07 01:22:26,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:26,177 INFO L225 Difference]: With dead ends: 51847 [2021-11-07 01:22:26,178 INFO L226 Difference]: Without dead ends: 25936 [2021-11-07 01:22:26,235 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 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 01:22:26,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25936 states. [2021-11-07 01:22:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25936 to 25936. [2021-11-07 01:22:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25936 states, 25808 states have (on average 1.6031075635461873) internal successors, (41373), 25935 states have internal predecessors, (41373), 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 01:22:27,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25936 states to 25936 states and 41373 transitions. [2021-11-07 01:22:27,625 INFO L78 Accepts]: Start accepts. Automaton has 25936 states and 41373 transitions. Word has length 59 [2021-11-07 01:22:27,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:27,627 INFO L470 AbstractCegarLoop]: Abstraction has 25936 states and 41373 transitions. [2021-11-07 01:22:27,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 01:22:27,629 INFO L276 IsEmpty]: Start isEmpty. Operand 25936 states and 41373 transitions. [2021-11-07 01:22:27,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:22:27,643 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:27,643 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, 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 01:22:27,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:27,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:27,862 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-07 01:22:27,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:27,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1015319103, now seen corresponding path program 1 times [2021-11-07 01:22:27,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:27,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353249507] [2021-11-07 01:22:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:27,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:27,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:27,867 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:27,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:22:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:28,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:22:28,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:28,630 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 01:22:28,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:28,862 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 01:22:28,862 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:28,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353249507] [2021-11-07 01:22:28,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353249507] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:28,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:28,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:22:28,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064387790] [2021-11-07 01:22:28,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:22:28,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:28,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:22:28,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:22:28,871 INFO L87 Difference]: Start difference. First operand 25936 states and 41373 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 01:22:33,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:33,723 INFO L93 Difference]: Finished difference Result 103591 states and 165258 transitions. [2021-11-07 01:22:33,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:22:33,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 64 [2021-11-07 01:22:33,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:34,077 INFO L225 Difference]: With dead ends: 103591 [2021-11-07 01:22:34,077 INFO L226 Difference]: Without dead ends: 77700 [2021-11-07 01:22:34,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:22:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77700 states. [2021-11-07 01:22:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77700 to 25934. [2021-11-07 01:22:36,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25934 states, 25806 states have (on average 1.6029218011315198) internal successors, (41365), 25933 states have internal predecessors, (41365), 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 01:22:36,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25934 states to 25934 states and 41365 transitions. [2021-11-07 01:22:36,086 INFO L78 Accepts]: Start accepts. Automaton has 25934 states and 41365 transitions. Word has length 64 [2021-11-07 01:22:36,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:36,087 INFO L470 AbstractCegarLoop]: Abstraction has 25934 states and 41365 transitions. [2021-11-07 01:22:36,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 01:22:36,090 INFO L276 IsEmpty]: Start isEmpty. Operand 25934 states and 41365 transitions. [2021-11-07 01:22:36,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 01:22:36,095 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:36,096 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, 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, 1] [2021-11-07 01:22:36,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:36,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:36,312 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-07 01:22:36,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:36,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1539786519, now seen corresponding path program 1 times [2021-11-07 01:22:36,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:36,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505580908] [2021-11-07 01:22:36,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:36,314 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:36,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:36,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:36,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:22:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:36,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:22:36,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:37,161 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 01:22:37,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:37,375 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 01:22:37,376 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:37,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505580908] [2021-11-07 01:22:37,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505580908] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:37,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:37,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:22:37,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694713589] [2021-11-07 01:22:37,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:22:37,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:37,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:22:37,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:22:37,400 INFO L87 Difference]: Start difference. First operand 25934 states and 41365 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 01:22:39,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:39,039 INFO L93 Difference]: Finished difference Result 51823 states and 82666 transitions. [2021-11-07 01:22:39,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:22:39,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 65 [2021-11-07 01:22:39,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:39,119 INFO L225 Difference]: With dead ends: 51823 [2021-11-07 01:22:39,120 INFO L226 Difference]: Without dead ends: 25946 [2021-11-07 01:22:39,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 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 01:22:39,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2021-11-07 01:22:40,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25934. [2021-11-07 01:22:40,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25934 states, 25806 states have (on average 1.6026892970626987) internal successors, (41359), 25933 states have internal predecessors, (41359), 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 01:22:40,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25934 states to 25934 states and 41359 transitions. [2021-11-07 01:22:40,542 INFO L78 Accepts]: Start accepts. Automaton has 25934 states and 41359 transitions. Word has length 65 [2021-11-07 01:22:40,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:40,547 INFO L470 AbstractCegarLoop]: Abstraction has 25934 states and 41359 transitions. [2021-11-07 01:22:40,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 01:22:40,547 INFO L276 IsEmpty]: Start isEmpty. Operand 25934 states and 41359 transitions. [2021-11-07 01:22:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 01:22:40,554 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:40,554 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, 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, 1, 1, 1] [2021-11-07 01:22:40,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:40,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:40,769 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-07 01:22:40,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:40,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1603062428, now seen corresponding path program 1 times [2021-11-07 01:22:40,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:40,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232524059] [2021-11-07 01:22:40,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:40,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:40,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:40,774 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:40,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:22:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:41,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:22:41,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:41,503 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 01:22:41,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:41,672 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 01:22:41,672 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:41,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232524059] [2021-11-07 01:22:41,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232524059] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:41,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:41,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:22:41,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835907320] [2021-11-07 01:22:41,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:22:41,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:41,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:22:41,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:22:41,675 INFO L87 Difference]: Start difference. First operand 25934 states and 41359 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 01:22:43,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:43,765 INFO L93 Difference]: Finished difference Result 77408 states and 123405 transitions. [2021-11-07 01:22:43,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:22:43,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 67 [2021-11-07 01:22:43,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:44,028 INFO L225 Difference]: With dead ends: 77408 [2021-11-07 01:22:44,029 INFO L226 Difference]: Without dead ends: 51807 [2021-11-07 01:22:44,082 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:22:44,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51807 states. [2021-11-07 01:22:45,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51807 to 26206. [2021-11-07 01:22:45,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26206 states, 26078 states have (on average 1.6052227931589846) internal successors, (41861), 26205 states have internal predecessors, (41861), 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 01:22:45,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26206 states to 26206 states and 41861 transitions. [2021-11-07 01:22:45,497 INFO L78 Accepts]: Start accepts. Automaton has 26206 states and 41861 transitions. Word has length 67 [2021-11-07 01:22:45,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:45,498 INFO L470 AbstractCegarLoop]: Abstraction has 26206 states and 41861 transitions. [2021-11-07 01:22:45,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 01:22:45,498 INFO L276 IsEmpty]: Start isEmpty. Operand 26206 states and 41861 transitions. [2021-11-07 01:22:45,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 01:22:45,503 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:45,503 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:45,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:45,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:45,720 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-07 01:22:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:45,720 INFO L85 PathProgramCache]: Analyzing trace with hash 795493167, now seen corresponding path program 1 times [2021-11-07 01:22:45,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:45,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609322393] [2021-11-07 01:22:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:45,722 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:45,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:45,724 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:45,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:22:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:46,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:22:46,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:46,533 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 01:22:46,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:46,699 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 01:22:46,699 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:46,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609322393] [2021-11-07 01:22:46,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609322393] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:46,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:46,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:22:46,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563892025] [2021-11-07 01:22:46,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:22:46,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:46,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:22:46,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:22:46,702 INFO L87 Difference]: Start difference. First operand 26206 states and 41861 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 01:22:48,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:48,808 INFO L93 Difference]: Finished difference Result 78112 states and 124708 transitions. [2021-11-07 01:22:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:22:48,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-07 01:22:48,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:48,916 INFO L225 Difference]: With dead ends: 78112 [2021-11-07 01:22:48,916 INFO L226 Difference]: Without dead ends: 52026 [2021-11-07 01:22:48,957 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 01:22:49,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52026 states. [2021-11-07 01:22:50,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52026 to 26425. [2021-11-07 01:22:50,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26425 states, 26297 states have (on average 1.6071795261816937) internal successors, (42264), 26424 states have internal predecessors, (42264), 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 01:22:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26425 states to 26425 states and 42264 transitions. [2021-11-07 01:22:50,535 INFO L78 Accepts]: Start accepts. Automaton has 26425 states and 42264 transitions. Word has length 79 [2021-11-07 01:22:50,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:50,535 INFO L470 AbstractCegarLoop]: Abstraction has 26425 states and 42264 transitions. [2021-11-07 01:22:50,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 01:22:50,536 INFO L276 IsEmpty]: Start isEmpty. Operand 26425 states and 42264 transitions. [2021-11-07 01:22:50,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 01:22:50,541 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:50,541 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:50,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:50,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:50,761 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-07 01:22:50,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:50,762 INFO L85 PathProgramCache]: Analyzing trace with hash 582695130, now seen corresponding path program 1 times [2021-11-07 01:22:50,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:50,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066888178] [2021-11-07 01:22:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:50,763 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:50,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:50,765 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:50,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:22:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:51,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:22:51,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:51,459 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 01:22:51,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:51,643 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 01:22:51,644 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:51,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066888178] [2021-11-07 01:22:51,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066888178] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:51,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:51,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:22:51,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640667386] [2021-11-07 01:22:51,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:22:51,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:51,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:22:51,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:22:51,646 INFO L87 Difference]: Start difference. First operand 26425 states and 42264 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 01:22:53,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:53,974 INFO L93 Difference]: Finished difference Result 78799 states and 125978 transitions. [2021-11-07 01:22:53,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:22:53,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2021-11-07 01:22:53,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:54,052 INFO L225 Difference]: With dead ends: 78799 [2021-11-07 01:22:54,052 INFO L226 Difference]: Without dead ends: 52503 [2021-11-07 01:22:54,082 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 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 01:22:54,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52503 states. [2021-11-07 01:22:55,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52503 to 26902. [2021-11-07 01:22:55,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26902 states, 26774 states have (on average 1.6114140584148802) internal successors, (43144), 26901 states have internal predecessors, (43144), 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 01:22:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26902 states to 26902 states and 43144 transitions. [2021-11-07 01:22:55,746 INFO L78 Accepts]: Start accepts. Automaton has 26902 states and 43144 transitions. Word has length 80 [2021-11-07 01:22:55,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:55,746 INFO L470 AbstractCegarLoop]: Abstraction has 26902 states and 43144 transitions. [2021-11-07 01:22:55,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 01:22:55,747 INFO L276 IsEmpty]: Start isEmpty. Operand 26902 states and 43144 transitions. [2021-11-07 01:22:55,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 01:22:55,755 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:55,755 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:55,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:55,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:55,971 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-07 01:22:55,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:55,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1023735877, now seen corresponding path program 1 times [2021-11-07 01:22:55,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:55,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663655506] [2021-11-07 01:22:55,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:55,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:55,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:55,975 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:56,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:22:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:56,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:22:56,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:56,721 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 01:22:56,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:56,892 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 01:22:56,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:56,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663655506] [2021-11-07 01:22:56,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663655506] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:56,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:56,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:22:56,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736504768] [2021-11-07 01:22:56,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:22:56,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:56,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:22:56,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:22:56,895 INFO L87 Difference]: Start difference. First operand 26902 states and 43144 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 01:22:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:59,228 INFO L93 Difference]: Finished difference Result 80207 states and 128581 transitions. [2021-11-07 01:22:59,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:22:59,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2021-11-07 01:22:59,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:59,306 INFO L225 Difference]: With dead ends: 80207 [2021-11-07 01:22:59,306 INFO L226 Difference]: Without dead ends: 53443 [2021-11-07 01:22:59,337 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 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 01:22:59,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53443 states. [2021-11-07 01:23:01,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53443 to 27842. [2021-11-07 01:23:01,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27842 states, 27714 states have (on average 1.6193620552789203) internal successors, (44879), 27841 states have internal predecessors, (44879), 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 01:23:01,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27842 states to 27842 states and 44879 transitions. [2021-11-07 01:23:01,161 INFO L78 Accepts]: Start accepts. Automaton has 27842 states and 44879 transitions. Word has length 81 [2021-11-07 01:23:01,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:23:01,162 INFO L470 AbstractCegarLoop]: Abstraction has 27842 states and 44879 transitions. [2021-11-07 01:23:01,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 01:23:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 27842 states and 44879 transitions. [2021-11-07 01:23:01,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 01:23:01,168 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:23:01,168 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1] [2021-11-07 01:23:01,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:23:01,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:23:01,370 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-07 01:23:01,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:23:01,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1663569572, now seen corresponding path program 1 times [2021-11-07 01:23:01,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:23:01,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540351740] [2021-11-07 01:23:01,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:23:01,371 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:23:01,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:23:01,372 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:23:01,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8851f146-7a16-4389-b17c-a4ba368de2cb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:23:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:01,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:23:01,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:02,097 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:02,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:23:02,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:23:02,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540351740] [2021-11-07 01:23:02,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540351740] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:23:02,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:23:02,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:23:02,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516866441] [2021-11-07 01:23:02,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:23:02,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:23:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:23:02,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:23:02,254 INFO L87 Difference]: Start difference. First operand 27842 states and 44879 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 01:23:05,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:23:05,082 INFO L93 Difference]: Finished difference Result 80944 states and 129937 transitions. [2021-11-07 01:23:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:23:05,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 81 [2021-11-07 01:23:05,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:23:05,154 INFO L225 Difference]: With dead ends: 80944 [2021-11-07 01:23:05,155 INFO L226 Difference]: Without dead ends: 53443 [2021-11-07 01:23:05,181 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:23:05,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53443 states.