./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext2/optional_data_creation_test04-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/optional_data_creation_test04-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7408f3b7e084094987873e007e2bbb0a022372240d1ad946af6301d3e9707406 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:59:16,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:59:16,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:59:16,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:59:16,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:59:16,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:59:16,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:59:16,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:59:16,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:59:16,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:59:16,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:59:16,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:59:16,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:59:16,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:59:16,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:59:16,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:59:16,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:59:16,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:59:16,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:59:16,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:59:16,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:59:16,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:59:16,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:59:16,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:59:16,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:59:16,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:59:16,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:59:16,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:59:16,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:59:16,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:59:16,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:59:16,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:59:16,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:59:16,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:59:16,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:59:16,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:59:16,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:59:16,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:59:16,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:59:16,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:59:16,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:59:16,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-06 23:59:16,526 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:59:16,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:59:16,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:59:16,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:59:16,527 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:59:16,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:59:16,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:59:16,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:59:16,528 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:59:16,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:59:16,529 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:59:16,529 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 23:59:16,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:59:16,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:59:16,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:59:16,529 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 23:59:16,529 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 23:59:16,529 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 23:59:16,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:59:16,530 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 23:59:16,530 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:59:16,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:59:16,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:59:16,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:59:16,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:59:16,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:59:16,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:59:16,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:59:16,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:59:16,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:59:16,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:59:16,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7408f3b7e084094987873e007e2bbb0a022372240d1ad946af6301d3e9707406 [2021-12-06 23:59:16,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:59:16,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:59:16,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:59:16,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:59:16,722 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:59:16,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/memsafety-ext2/optional_data_creation_test04-1.i [2021-12-06 23:59:16,764 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/data/9766a1673/3f5347623b88432eb90f945d4751ce3e/FLAGc36026200 [2021-12-06 23:59:17,174 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:59:17,174 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/sv-benchmarks/c/memsafety-ext2/optional_data_creation_test04-1.i [2021-12-06 23:59:17,186 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/data/9766a1673/3f5347623b88432eb90f945d4751ce3e/FLAGc36026200 [2021-12-06 23:59:17,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/data/9766a1673/3f5347623b88432eb90f945d4751ce3e [2021-12-06 23:59:17,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:59:17,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:59:17,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:59:17,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:59:17,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:59:17,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:59:17" (1/1) ... [2021-12-06 23:59:17,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3cf0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:17, skipping insertion in model container [2021-12-06 23:59:17,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:59:17" (1/1) ... [2021-12-06 23:59:17,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:59:17,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:59:17,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:59:17,437 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) [2021-12-06 23:59:17,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d85d5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:17, skipping insertion in model container [2021-12-06 23:59:17,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:59:17,438 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-06 23:59:17,439 INFO L158 Benchmark]: Toolchain (without parser) took 238.12ms. Allocated memory is still 104.9MB. Free memory was 67.6MB in the beginning and 77.8MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 23:59:17,440 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:59:17,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.80ms. Allocated memory is still 104.9MB. Free memory was 67.4MB in the beginning and 77.8MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 23:59:17,441 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.80ms. Allocated memory is still 104.9MB. Free memory was 67.4MB in the beginning and 77.8MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 555]: 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_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/optional_data_creation_test04-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7408f3b7e084094987873e007e2bbb0a022372240d1ad946af6301d3e9707406 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:59:18,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:59:18,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:59:18,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:59:18,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:59:18,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:59:18,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:59:18,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:59:18,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:59:18,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:59:18,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:59:18,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:59:18,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:59:18,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:59:18,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:59:18,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:59:18,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:59:18,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:59:18,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:59:18,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:59:18,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:59:18,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:59:18,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:59:18,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:59:18,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:59:18,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:59:18,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:59:18,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:59:18,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:59:18,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:59:18,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:59:18,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:59:18,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:59:18,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:59:18,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:59:18,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:59:18,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:59:18,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:59:18,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:59:18,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:59:18,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:59:18,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-06 23:59:19,000 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:59:19,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:59:19,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:59:19,001 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:59:19,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:59:19,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:59:19,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:59:19,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:59:19,002 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:59:19,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:59:19,003 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:59:19,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 23:59:19,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:59:19,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:59:19,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:59:19,004 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 23:59:19,004 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 23:59:19,004 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 23:59:19,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:59:19,004 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 23:59:19,004 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 23:59:19,005 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 23:59:19,005 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:59:19,005 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:59:19,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:59:19,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:59:19,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:59:19,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:59:19,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:59:19,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:59:19,006 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 23:59:19,006 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 23:59:19,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:59:19,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 23:59:19,006 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_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7408f3b7e084094987873e007e2bbb0a022372240d1ad946af6301d3e9707406 [2021-12-06 23:59:19,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:59:19,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:59:19,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:59:19,290 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:59:19,290 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:59:19,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/memsafety-ext2/optional_data_creation_test04-1.i [2021-12-06 23:59:19,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/data/8c74c618d/94a21d8ab4844f86aef84c32f96cc4eb/FLAG8fda0eb8a [2021-12-06 23:59:19,765 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:59:19,765 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/sv-benchmarks/c/memsafety-ext2/optional_data_creation_test04-1.i [2021-12-06 23:59:19,774 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/data/8c74c618d/94a21d8ab4844f86aef84c32f96cc4eb/FLAG8fda0eb8a [2021-12-06 23:59:19,783 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/data/8c74c618d/94a21d8ab4844f86aef84c32f96cc4eb [2021-12-06 23:59:19,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:59:19,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:59:19,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:59:19,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:59:19,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:59:19,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:59:19" (1/1) ... [2021-12-06 23:59:19,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634798a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:19, skipping insertion in model container [2021-12-06 23:59:19,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:59:19" (1/1) ... [2021-12-06 23:59:19,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:59:19,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:59:20,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:59:20,049 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 23:59:20,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:59:20,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:59:20,092 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:59:20,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:59:20,161 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:59:20,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20 WrapperNode [2021-12-06 23:59:20,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:59:20,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:59:20,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:59:20,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:59:20,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (1/1) ... [2021-12-06 23:59:20,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (1/1) ... [2021-12-06 23:59:20,207 INFO L137 Inliner]: procedures = 129, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 110 [2021-12-06 23:59:20,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:59:20,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:59:20,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:59:20,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:59:20,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (1/1) ... [2021-12-06 23:59:20,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (1/1) ... [2021-12-06 23:59:20,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (1/1) ... [2021-12-06 23:59:20,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (1/1) ... [2021-12-06 23:59:20,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (1/1) ... [2021-12-06 23:59:20,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (1/1) ... [2021-12-06 23:59:20,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (1/1) ... [2021-12-06 23:59:20,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:59:20,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:59:20,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:59:20,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:59:20,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (1/1) ... [2021-12-06 23:59:20,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:59:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:20,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:59:20,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:59:20,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:59:20,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:59:20,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:59:20,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 23:59:20,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 23:59:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:59:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 23:59:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 23:59:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 23:59:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:59:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:59:20,383 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:59:20,384 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:59:20,730 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:59:20,736 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:59:20,737 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 23:59:20,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:59:20 BoogieIcfgContainer [2021-12-06 23:59:20,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:59:20,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:59:20,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:59:20,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:59:20,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:59:19" (1/3) ... [2021-12-06 23:59:20,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bb6b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:59:20, skipping insertion in model container [2021-12-06 23:59:20,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:20" (2/3) ... [2021-12-06 23:59:20,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bb6b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:59:20, skipping insertion in model container [2021-12-06 23:59:20,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:59:20" (3/3) ... [2021-12-06 23:59:20,746 INFO L111 eAbstractionObserver]: Analyzing ICFG optional_data_creation_test04-1.i [2021-12-06 23:59:20,751 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:59:20,751 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2021-12-06 23:59:20,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:59:20,796 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:59:20,796 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-12-06 23:59:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 51 states have (on average 2.0980392156862746) internal successors, (107), 97 states have internal predecessors, (107), 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) [2021-12-06 23:59:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-06 23:59:20,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:20,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-06 23:59:20,813 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:20,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:20,817 INFO L85 PathProgramCache]: Analyzing trace with hash 925637, now seen corresponding path program 1 times [2021-12-06 23:59:20,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:20,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172957190] [2021-12-06 23:59:20,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:20,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:20,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:20,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:20,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 23:59:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:20,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 23:59:20,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:20,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:20,980 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-06 23:59:20,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 23 [2021-12-06 23:59:21,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:21,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:21,009 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:21,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172957190] [2021-12-06 23:59:21,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172957190] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:21,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:21,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:59:21,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841503168] [2021-12-06 23:59:21,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:21,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:59:21,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:21,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:59:21,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:59:21,035 INFO L87 Difference]: Start difference. First operand has 98 states, 51 states have (on average 2.0980392156862746) internal successors, (107), 97 states have internal predecessors, (107), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-12-06 23:59:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:21,259 INFO L93 Difference]: Finished difference Result 109 states and 116 transitions. [2021-12-06 23:59:21,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:59:21,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2021-12-06 23:59:21,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:21,268 INFO L225 Difference]: With dead ends: 109 [2021-12-06 23:59:21,268 INFO L226 Difference]: Without dead ends: 107 [2021-12-06 23:59:21,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:21,273 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 43 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:21,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 155 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 55 Unchecked, 0.2s Time] [2021-12-06 23:59:21,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-12-06 23:59:21,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 99. [2021-12-06 23:59:21,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 55 states have (on average 1.9636363636363636) internal successors, (108), 98 states have internal predecessors, (108), 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) [2021-12-06 23:59:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2021-12-06 23:59:21,306 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 4 [2021-12-06 23:59:21,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:21,306 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2021-12-06 23:59:21,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-12-06 23:59:21,307 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2021-12-06 23:59:21,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-06 23:59:21,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:21,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-06 23:59:21,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 23:59:21,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:21,509 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:21,512 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2021-12-06 23:59:21,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:21,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938056453] [2021-12-06 23:59:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:21,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:21,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:21,521 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:21,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 23:59:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:21,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 23:59:21,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:21,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:21,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:21,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:21,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-06 23:59:21,761 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 23:59:21,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-12-06 23:59:21,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:21,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:21,781 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:21,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938056453] [2021-12-06 23:59:21,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938056453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:21,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:21,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:59:21,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768088208] [2021-12-06 23:59:21,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:21,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:59:21,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:21,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:59:21,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:59:21,784 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-12-06 23:59:22,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:22,183 INFO L93 Difference]: Finished difference Result 241 states and 258 transitions. [2021-12-06 23:59:22,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:22,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2021-12-06 23:59:22,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:22,185 INFO L225 Difference]: With dead ends: 241 [2021-12-06 23:59:22,185 INFO L226 Difference]: Without dead ends: 241 [2021-12-06 23:59:22,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:22,186 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 240 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:22,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 97 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 23:59:22,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-12-06 23:59:22,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 111. [2021-12-06 23:59:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 69 states have (on average 1.8405797101449275) internal successors, (127), 110 states have internal predecessors, (127), 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) [2021-12-06 23:59:22,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2021-12-06 23:59:22,196 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 4 [2021-12-06 23:59:22,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:22,196 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2021-12-06 23:59:22,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-12-06 23:59:22,196 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2021-12-06 23:59:22,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-06 23:59:22,196 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:22,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-06 23:59:22,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 23:59:22,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:22,398 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:22,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:22,400 INFO L85 PathProgramCache]: Analyzing trace with hash 28694727, now seen corresponding path program 1 times [2021-12-06 23:59:22,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:22,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580782589] [2021-12-06 23:59:22,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:22,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:22,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:22,406 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:22,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 23:59:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 23:59:22,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:22,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:22,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:22,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:22,493 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:22,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580782589] [2021-12-06 23:59:22,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580782589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:22,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:22,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:59:22,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961386072] [2021-12-06 23:59:22,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:22,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:59:22,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:22,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:59:22,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:22,495 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-06 23:59:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:22,655 INFO L93 Difference]: Finished difference Result 139 states and 151 transitions. [2021-12-06 23:59:22,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:59:22,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-12-06 23:59:22,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:22,657 INFO L225 Difference]: With dead ends: 139 [2021-12-06 23:59:22,657 INFO L226 Difference]: Without dead ends: 139 [2021-12-06 23:59:22,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:22,658 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 77 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:22,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 87 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:59:22,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-12-06 23:59:22,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 109. [2021-12-06 23:59:22,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 69 states have (on average 1.7971014492753623) internal successors, (124), 108 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:22,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 124 transitions. [2021-12-06 23:59:22,666 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 124 transitions. Word has length 5 [2021-12-06 23:59:22,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:22,667 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 124 transitions. [2021-12-06 23:59:22,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-06 23:59:22,667 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 124 transitions. [2021-12-06 23:59:22,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-06 23:59:22,667 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:22,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-06 23:59:22,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 23:59:22,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:22,869 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:22,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:22,871 INFO L85 PathProgramCache]: Analyzing trace with hash 28694728, now seen corresponding path program 1 times [2021-12-06 23:59:22,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:22,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093860970] [2021-12-06 23:59:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:22,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:22,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:22,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:22,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 23:59:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:22,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:59:22,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:22,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:22,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:22,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:22,975 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:22,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093860970] [2021-12-06 23:59:22,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093860970] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:22,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:22,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:59:22,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813807447] [2021-12-06 23:59:22,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:22,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:59:22,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:22,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:59:22,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:22,977 INFO L87 Difference]: Start difference. First operand 109 states and 124 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-06 23:59:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:23,218 INFO L93 Difference]: Finished difference Result 185 states and 209 transitions. [2021-12-06 23:59:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:59:23,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-12-06 23:59:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:23,220 INFO L225 Difference]: With dead ends: 185 [2021-12-06 23:59:23,220 INFO L226 Difference]: Without dead ends: 185 [2021-12-06 23:59:23,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:23,221 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 74 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:23,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 117 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:59:23,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-12-06 23:59:23,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 112. [2021-12-06 23:59:23,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 73 states have (on average 1.7534246575342465) internal successors, (128), 111 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:23,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2021-12-06 23:59:23,228 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 5 [2021-12-06 23:59:23,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:23,228 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2021-12-06 23:59:23,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-06 23:59:23,228 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2021-12-06 23:59:23,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 23:59:23,228 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:23,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:23,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 23:59:23,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:23,430 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:23,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:23,432 INFO L85 PathProgramCache]: Analyzing trace with hash 234239181, now seen corresponding path program 1 times [2021-12-06 23:59:23,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:23,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245994037] [2021-12-06 23:59:23,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:23,434 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:23,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:23,436 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:23,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 23:59:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:23,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 23:59:23,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:23,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:23,525 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-06 23:59:23,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2021-12-06 23:59:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:23,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:23,538 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:23,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245994037] [2021-12-06 23:59:23,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [245994037] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:23,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:23,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:59:23,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033761618] [2021-12-06 23:59:23,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:23,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:59:23,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:23,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:59:23,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:23,540 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:23,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:23,707 INFO L93 Difference]: Finished difference Result 157 states and 175 transitions. [2021-12-06 23:59:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:59:23,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 23:59:23,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:23,708 INFO L225 Difference]: With dead ends: 157 [2021-12-06 23:59:23,709 INFO L226 Difference]: Without dead ends: 157 [2021-12-06 23:59:23,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:23,710 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 71 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:23,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 146 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:59:23,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-12-06 23:59:23,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 108. [2021-12-06 23:59:23,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 73 states have (on average 1.6849315068493151) internal successors, (123), 107 states have internal predecessors, (123), 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) [2021-12-06 23:59:23,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2021-12-06 23:59:23,718 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 9 [2021-12-06 23:59:23,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:23,718 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2021-12-06 23:59:23,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:23,718 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2021-12-06 23:59:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 23:59:23,719 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:23,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:23,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 23:59:23,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:23,920 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:23,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:23,921 INFO L85 PathProgramCache]: Analyzing trace with hash 234239182, now seen corresponding path program 1 times [2021-12-06 23:59:23,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:23,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473597424] [2021-12-06 23:59:23,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:23,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:23,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:23,924 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:23,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 23:59:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:24,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:59:24,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:24,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:24,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:24,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:24,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-06 23:59:24,086 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 23:59:24,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-12-06 23:59:24,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:24,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:24,096 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:24,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473597424] [2021-12-06 23:59:24,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473597424] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:24,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:24,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:59:24,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928474299] [2021-12-06 23:59:24,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:24,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:59:24,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:24,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:59:24,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:59:24,098 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:24,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:24,366 INFO L93 Difference]: Finished difference Result 206 states and 226 transitions. [2021-12-06 23:59:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:59:24,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 23:59:24,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:24,368 INFO L225 Difference]: With dead ends: 206 [2021-12-06 23:59:24,368 INFO L226 Difference]: Without dead ends: 206 [2021-12-06 23:59:24,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:59:24,369 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 187 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:24,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 170 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 23:59:24,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-12-06 23:59:24,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 104. [2021-12-06 23:59:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 73 states have (on average 1.6164383561643836) internal successors, (118), 103 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2021-12-06 23:59:24,374 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 9 [2021-12-06 23:59:24,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:24,374 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2021-12-06 23:59:24,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2021-12-06 23:59:24,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 23:59:24,375 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:24,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:24,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 23:59:24,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:24,576 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:24,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:24,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1764814572, now seen corresponding path program 1 times [2021-12-06 23:59:24,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:24,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725327499] [2021-12-06 23:59:24,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:24,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:24,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:24,582 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:24,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 23:59:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:24,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:59:24,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:24,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:24,653 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:24,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725327499] [2021-12-06 23:59:24,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725327499] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:24,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:24,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:59:24,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601630575] [2021-12-06 23:59:24,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:24,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:59:24,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:59:24,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:24,654 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:24,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:24,784 INFO L93 Difference]: Finished difference Result 133 states and 143 transitions. [2021-12-06 23:59:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:59:24,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-06 23:59:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:24,785 INFO L225 Difference]: With dead ends: 133 [2021-12-06 23:59:24,785 INFO L226 Difference]: Without dead ends: 133 [2021-12-06 23:59:24,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:24,786 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 60 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:24,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 85 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:59:24,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-12-06 23:59:24,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 103. [2021-12-06 23:59:24,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 73 states have (on average 1.5890410958904109) internal successors, (116), 102 states have internal predecessors, (116), 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) [2021-12-06 23:59:24,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2021-12-06 23:59:24,790 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 11 [2021-12-06 23:59:24,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:24,790 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2021-12-06 23:59:24,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:24,790 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2021-12-06 23:59:24,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 23:59:24,791 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:24,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:24,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 23:59:24,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:24,993 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:24,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:24,994 INFO L85 PathProgramCache]: Analyzing trace with hash 184732728, now seen corresponding path program 1 times [2021-12-06 23:59:24,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:24,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584078147] [2021-12-06 23:59:24,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:24,996 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:24,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:24,998 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:25,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 23:59:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:25,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 23:59:25,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:25,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:25,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 23:59:25,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-12-06 23:59:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:25,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:25,153 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:25,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584078147] [2021-12-06 23:59:25,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584078147] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:25,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:25,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:25,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672419547] [2021-12-06 23:59:25,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:25,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:25,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:25,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:25,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:25,155 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:25,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:25,435 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2021-12-06 23:59:25,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:59:25,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-06 23:59:25,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:25,436 INFO L225 Difference]: With dead ends: 112 [2021-12-06 23:59:25,436 INFO L226 Difference]: Without dead ends: 112 [2021-12-06 23:59:25,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:25,437 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 8 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:25,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 217 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 23:59:25,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-12-06 23:59:25,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2021-12-06 23:59:25,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 76 states have (on average 1.5921052631578947) internal successors, (121), 105 states have internal predecessors, (121), 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) [2021-12-06 23:59:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2021-12-06 23:59:25,440 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 13 [2021-12-06 23:59:25,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:25,441 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2021-12-06 23:59:25,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:25,441 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2021-12-06 23:59:25,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 23:59:25,441 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:25,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:25,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-06 23:59:25,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:25,643 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:25,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash 184732729, now seen corresponding path program 1 times [2021-12-06 23:59:25,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:25,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257365915] [2021-12-06 23:59:25,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:25,646 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:25,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:25,649 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:25,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 23:59:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:25,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 23:59:25,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:25,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:25,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 23:59:25,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 23:59:25,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-06 23:59:25,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 23:59:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:25,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:25,824 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:25,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257365915] [2021-12-06 23:59:25,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257365915] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:25,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:25,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:59:25,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196637155] [2021-12-06 23:59:25,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:25,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:59:25,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:25,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:59:25,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:59:25,825 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:26,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:26,195 INFO L93 Difference]: Finished difference Result 107 states and 120 transitions. [2021-12-06 23:59:26,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:59:26,195 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-06 23:59:26,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:26,196 INFO L225 Difference]: With dead ends: 107 [2021-12-06 23:59:26,196 INFO L226 Difference]: Without dead ends: 107 [2021-12-06 23:59:26,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:59:26,197 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:26,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 267 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 23:59:26,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-12-06 23:59:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2021-12-06 23:59:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 76 states have (on average 1.5657894736842106) internal successors, (119), 105 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:26,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2021-12-06 23:59:26,199 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 13 [2021-12-06 23:59:26,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:26,199 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2021-12-06 23:59:26,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:26,200 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2021-12-06 23:59:26,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 23:59:26,200 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:26,200 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:26,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 23:59:26,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:26,402 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:26,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:26,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2014875891, now seen corresponding path program 1 times [2021-12-06 23:59:26,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:26,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103441461] [2021-12-06 23:59:26,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:26,405 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:26,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:26,407 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:26,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 23:59:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:26,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:59:26,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:26,567 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-06 23:59:26,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2021-12-06 23:59:26,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:26,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:26,623 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-12-06 23:59:26,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2021-12-06 23:59:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:26,628 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:26,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103441461] [2021-12-06 23:59:26,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103441461] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:26,628 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 23:59:26,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-12-06 23:59:26,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945248960] [2021-12-06 23:59:26,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:26,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:26,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:26,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:26,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:26,629 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:26,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:26,767 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2021-12-06 23:59:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:26,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-06 23:59:26,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:26,769 INFO L225 Difference]: With dead ends: 112 [2021-12-06 23:59:26,769 INFO L226 Difference]: Without dead ends: 112 [2021-12-06 23:59:26,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:59:26,770 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 215 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:26,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 56 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:59:26,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-12-06 23:59:26,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 103. [2021-12-06 23:59:26,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 74 states have (on average 1.5675675675675675) internal successors, (116), 102 states have internal predecessors, (116), 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) [2021-12-06 23:59:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2021-12-06 23:59:26,772 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 15 [2021-12-06 23:59:26,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:26,772 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2021-12-06 23:59:26,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:26,773 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2021-12-06 23:59:26,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 23:59:26,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:26,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:26,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-06 23:59:26,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:26,975 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:26,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:26,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1897191059, now seen corresponding path program 1 times [2021-12-06 23:59:26,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:26,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163930027] [2021-12-06 23:59:26,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:26,978 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:26,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:26,981 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:26,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 23:59:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:27,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 23:59:27,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:27,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:27,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 23:59:27,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-06 23:59:27,157 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 23:59:27,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-12-06 23:59:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:27,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:27,204 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:27,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163930027] [2021-12-06 23:59:27,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163930027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:27,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:27,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:59:27,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309449153] [2021-12-06 23:59:27,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:27,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:59:27,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:27,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:59:27,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:59:27,207 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:27,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:27,438 INFO L93 Difference]: Finished difference Result 133 states and 143 transitions. [2021-12-06 23:59:27,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:59:27,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-06 23:59:27,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:27,439 INFO L225 Difference]: With dead ends: 133 [2021-12-06 23:59:27,439 INFO L226 Difference]: Without dead ends: 133 [2021-12-06 23:59:27,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:59:27,440 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 292 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:27,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 65 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:59:27,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-12-06 23:59:27,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 98. [2021-12-06 23:59:27,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 70 states have (on average 1.5857142857142856) internal successors, (111), 97 states have internal predecessors, (111), 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) [2021-12-06 23:59:27,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2021-12-06 23:59:27,444 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 15 [2021-12-06 23:59:27,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:27,445 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2021-12-06 23:59:27,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2021-12-06 23:59:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-06 23:59:27,446 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:27,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:27,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-06 23:59:27,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:27,648 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:27,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:27,649 INFO L85 PathProgramCache]: Analyzing trace with hash -734113802, now seen corresponding path program 1 times [2021-12-06 23:59:27,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:27,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947481449] [2021-12-06 23:59:27,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:27,652 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:27,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:27,653 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:27,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 23:59:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:27,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 23:59:27,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:27,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:27,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-12-06 23:59:27,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:27,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:27,841 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:27,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947481449] [2021-12-06 23:59:27,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947481449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:27,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:27,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:59:27,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082517992] [2021-12-06 23:59:27,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:27,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:27,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:27,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:27,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:27,843 INFO L87 Difference]: Start difference. First operand 98 states and 111 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:28,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:28,033 INFO L93 Difference]: Finished difference Result 137 states and 146 transitions. [2021-12-06 23:59:28,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:28,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-06 23:59:28,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:28,034 INFO L225 Difference]: With dead ends: 137 [2021-12-06 23:59:28,034 INFO L226 Difference]: Without dead ends: 137 [2021-12-06 23:59:28,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:28,035 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 164 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:28,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 174 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:59:28,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-12-06 23:59:28,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 98. [2021-12-06 23:59:28,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 70 states have (on average 1.5714285714285714) internal successors, (110), 97 states have internal predecessors, (110), 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) [2021-12-06 23:59:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2021-12-06 23:59:28,038 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 17 [2021-12-06 23:59:28,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:28,038 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2021-12-06 23:59:28,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:28,038 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2021-12-06 23:59:28,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-06 23:59:28,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:28,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:28,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-06 23:59:28,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:28,240 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:28,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:28,241 INFO L85 PathProgramCache]: Analyzing trace with hash -734113798, now seen corresponding path program 1 times [2021-12-06 23:59:28,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:28,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357380203] [2021-12-06 23:59:28,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:28,243 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:28,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:28,246 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:28,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-06 23:59:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:28,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 23:59:28,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:28,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:28,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:28,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-12-06 23:59:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:28,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:28,460 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:28,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357380203] [2021-12-06 23:59:28,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357380203] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:28,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:28,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:28,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907436699] [2021-12-06 23:59:28,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:28,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:28,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:28,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:28,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:28,461 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:28,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:28,760 INFO L93 Difference]: Finished difference Result 129 states and 138 transitions. [2021-12-06 23:59:28,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:59:28,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-06 23:59:28,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:28,762 INFO L225 Difference]: With dead ends: 129 [2021-12-06 23:59:28,762 INFO L226 Difference]: Without dead ends: 129 [2021-12-06 23:59:28,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:28,762 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 97 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:28,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 158 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 23:59:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-12-06 23:59:28,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 98. [2021-12-06 23:59:28,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 70 states have (on average 1.5571428571428572) internal successors, (109), 97 states have internal predecessors, (109), 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) [2021-12-06 23:59:28,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2021-12-06 23:59:28,765 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 17 [2021-12-06 23:59:28,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:28,765 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2021-12-06 23:59:28,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:28,765 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2021-12-06 23:59:28,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-06 23:59:28,766 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:28,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:28,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-12-06 23:59:28,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:28,967 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:28,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:28,967 INFO L85 PathProgramCache]: Analyzing trace with hash -734113797, now seen corresponding path program 1 times [2021-12-06 23:59:28,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:28,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649855808] [2021-12-06 23:59:28,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:28,968 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:28,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:28,969 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:28,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-06 23:59:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 23:59:29,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:29,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:29,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:29,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:29,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-06 23:59:29,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-06 23:59:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:29,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:29,239 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:29,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649855808] [2021-12-06 23:59:29,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649855808] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:29,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:29,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:29,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974573713] [2021-12-06 23:59:29,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:29,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:29,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:29,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:29,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:29,240 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:29,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:29,660 INFO L93 Difference]: Finished difference Result 201 states and 219 transitions. [2021-12-06 23:59:29,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:29,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-06 23:59:29,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:29,662 INFO L225 Difference]: With dead ends: 201 [2021-12-06 23:59:29,662 INFO L226 Difference]: Without dead ends: 201 [2021-12-06 23:59:29,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:29,663 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 148 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:29,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 221 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 23:59:29,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-12-06 23:59:29,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 106. [2021-12-06 23:59:29,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.5128205128205128) internal successors, (118), 105 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:29,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2021-12-06 23:59:29,667 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 17 [2021-12-06 23:59:29,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:29,668 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2021-12-06 23:59:29,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:29,668 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2021-12-06 23:59:29,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 23:59:29,668 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:29,669 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:29,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-06 23:59:29,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:29,870 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:29,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:29,871 INFO L85 PathProgramCache]: Analyzing trace with hash 50233868, now seen corresponding path program 1 times [2021-12-06 23:59:29,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:29,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819015017] [2021-12-06 23:59:29,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:29,873 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:29,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:29,875 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:29,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-06 23:59:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:29,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 23:59:29,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:29,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:30,008 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-06 23:59:30,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2021-12-06 23:59:30,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 23:59:30,144 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 23:59:30,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 39 [2021-12-06 23:59:30,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-12-06 23:59:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 23:59:30,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:30,305 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_303 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse0 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse0) v_ArrVal_303) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse0))))))))) (_ bv1 1)))) is different from false [2021-12-06 23:59:30,323 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:30,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2021-12-06 23:59:30,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-12-06 23:59:30,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-12-06 23:59:34,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-12-06 23:59:34,446 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:34,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819015017] [2021-12-06 23:59:34,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819015017] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:34,447 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 23:59:34,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2021-12-06 23:59:34,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895290247] [2021-12-06 23:59:34,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:34,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 23:59:34,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:34,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 23:59:34,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=95, Unknown=3, NotChecked=20, Total=156 [2021-12-06 23:59:34,448 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:34,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:34,700 INFO L93 Difference]: Finished difference Result 151 states and 165 transitions. [2021-12-06 23:59:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:59:34,700 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-06 23:59:34,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:34,701 INFO L225 Difference]: With dead ends: 151 [2021-12-06 23:59:34,701 INFO L226 Difference]: Without dead ends: 151 [2021-12-06 23:59:34,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=38, Invalid=95, Unknown=3, NotChecked=20, Total=156 [2021-12-06 23:59:34,702 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 112 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 322 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:34,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 552 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 322 Unchecked, 0.2s Time] [2021-12-06 23:59:34,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-12-06 23:59:34,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 105. [2021-12-06 23:59:34,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 78 states have (on average 1.5) internal successors, (117), 104 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:34,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2021-12-06 23:59:34,704 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 18 [2021-12-06 23:59:34,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:34,704 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2021-12-06 23:59:34,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 13 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:34,705 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2021-12-06 23:59:34,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 23:59:34,705 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:34,705 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:34,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-12-06 23:59:34,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:34,906 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:34,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:34,908 INFO L85 PathProgramCache]: Analyzing trace with hash 50233869, now seen corresponding path program 1 times [2021-12-06 23:59:34,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:34,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033735282] [2021-12-06 23:59:34,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:34,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:34,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:34,912 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:34,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-06 23:59:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:35,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-06 23:59:35,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:35,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:35,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:35,064 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 23:59:35,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-12-06 23:59:35,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 23:59:35,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 23:59:35,196 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 23:59:35,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-06 23:59:35,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-06 23:59:35,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-12-06 23:59:35,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 23:59:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:35,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:35,743 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_345 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_346 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (bvule (bvadd (_ bv8 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_346) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_345) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse0))))) (forall ((v_ArrVal_346 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_346) |c_ULTIMATE.start_create_data_~data~0#1.base|) (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32))))) (bvule (bvadd (_ bv4 32) .cse1 .cse2) (bvadd (_ bv8 32) .cse1 .cse2))))) is different from false [2021-12-06 23:59:35,783 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_346 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse1 (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) v_ArrVal_346) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_345 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_346 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))) (bvule (bvadd (_ bv8 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_346) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_345) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))))))) is different from false [2021-12-06 23:59:35,841 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_346 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1) v_ArrVal_346) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1)))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_345 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_346 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_346) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_345) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3))))))) is different from false [2021-12-06 23:59:35,854 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:35,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 36 [2021-12-06 23:59:35,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 36 [2021-12-06 23:59:35,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-12-06 23:59:35,883 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:35,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2021-12-06 23:59:35,895 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:35,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2021-12-06 23:59:35,899 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 23:59:35,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-12-06 23:59:35,905 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 23:59:35,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-12-06 23:59:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-12-06 23:59:35,982 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:35,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033735282] [2021-12-06 23:59:35,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033735282] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:35,982 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 23:59:35,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-12-06 23:59:35,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586036079] [2021-12-06 23:59:35,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:35,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-06 23:59:35,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:35,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 23:59:35,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=124, Unknown=3, NotChecked=72, Total=240 [2021-12-06 23:59:35,984 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 16 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:38,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:38,497 INFO L93 Difference]: Finished difference Result 164 states and 179 transitions. [2021-12-06 23:59:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:59:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 16 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-06 23:59:38,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:38,499 INFO L225 Difference]: With dead ends: 164 [2021-12-06 23:59:38,499 INFO L226 Difference]: Without dead ends: 164 [2021-12-06 23:59:38,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=85, Invalid=266, Unknown=3, NotChecked=108, Total=462 [2021-12-06 23:59:38,500 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 73 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 251 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:38,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 753 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 539 Invalid, 0 Unknown, 251 Unchecked, 1.9s Time] [2021-12-06 23:59:38,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-12-06 23:59:38,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 110. [2021-12-06 23:59:38,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 109 states have internal predecessors, (122), 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) [2021-12-06 23:59:38,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 122 transitions. [2021-12-06 23:59:38,502 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 122 transitions. Word has length 18 [2021-12-06 23:59:38,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:38,503 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 122 transitions. [2021-12-06 23:59:38,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 16 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:38,503 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 122 transitions. [2021-12-06 23:59:38,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-06 23:59:38,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:38,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:38,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-12-06 23:59:38,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:38,704 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:38,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:38,706 INFO L85 PathProgramCache]: Analyzing trace with hash -10622392, now seen corresponding path program 1 times [2021-12-06 23:59:38,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:38,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365524050] [2021-12-06 23:59:38,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:38,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:38,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:38,710 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:38,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-06 23:59:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 23:59:38,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:38,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:38,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:38,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-12-06 23:59:38,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:38,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:38,863 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:38,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365524050] [2021-12-06 23:59:38,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365524050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:38,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:38,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:38,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754534049] [2021-12-06 23:59:38,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:38,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:38,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:38,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:38,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:38,864 INFO L87 Difference]: Start difference. First operand 110 states and 122 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:39,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:39,161 INFO L93 Difference]: Finished difference Result 146 states and 156 transitions. [2021-12-06 23:59:39,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:59:39,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-06 23:59:39,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:39,162 INFO L225 Difference]: With dead ends: 146 [2021-12-06 23:59:39,162 INFO L226 Difference]: Without dead ends: 146 [2021-12-06 23:59:39,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:39,163 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 133 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:39,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 160 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 23:59:39,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-12-06 23:59:39,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 110. [2021-12-06 23:59:39,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 109 states have internal predecessors, (121), 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) [2021-12-06 23:59:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2021-12-06 23:59:39,165 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 20 [2021-12-06 23:59:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:39,165 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2021-12-06 23:59:39,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:39,166 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2021-12-06 23:59:39,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-06 23:59:39,166 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:39,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:39,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-12-06 23:59:39,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:39,368 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:39,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:39,369 INFO L85 PathProgramCache]: Analyzing trace with hash -10622391, now seen corresponding path program 1 times [2021-12-06 23:59:39,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:39,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937456245] [2021-12-06 23:59:39,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:39,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:39,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:39,373 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:39,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-06 23:59:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:39,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 23:59:39,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:39,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:39,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:39,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:39,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-06 23:59:39,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-06 23:59:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:39,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:39,670 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:39,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937456245] [2021-12-06 23:59:39,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937456245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:39,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:39,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:39,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652218552] [2021-12-06 23:59:39,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:39,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:39,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:39,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:39,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:39,671 INFO L87 Difference]: Start difference. First operand 110 states and 121 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:40,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:40,055 INFO L93 Difference]: Finished difference Result 203 states and 220 transitions. [2021-12-06 23:59:40,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:40,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-06 23:59:40,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:40,057 INFO L225 Difference]: With dead ends: 203 [2021-12-06 23:59:40,057 INFO L226 Difference]: Without dead ends: 203 [2021-12-06 23:59:40,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:40,058 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 164 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:40,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 187 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 23:59:40,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-12-06 23:59:40,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 113. [2021-12-06 23:59:40,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 86 states have (on average 1.441860465116279) internal successors, (124), 112 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:40,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 124 transitions. [2021-12-06 23:59:40,060 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 124 transitions. Word has length 20 [2021-12-06 23:59:40,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:40,061 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 124 transitions. [2021-12-06 23:59:40,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:40,061 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2021-12-06 23:59:40,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 23:59:40,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:40,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:40,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-12-06 23:59:40,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:40,262 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:40,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:40,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1375969503, now seen corresponding path program 1 times [2021-12-06 23:59:40,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:40,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31155867] [2021-12-06 23:59:40,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:40,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:40,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:40,266 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:40,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-06 23:59:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:40,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-06 23:59:40,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:40,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:40,381 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 23:59:40,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-12-06 23:59:40,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:40,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:40,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-12-06 23:59:40,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-06 23:59:40,660 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-12-06 23:59:40,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 36 [2021-12-06 23:59:40,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-12-06 23:59:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:40,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:40,699 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:40,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31155867] [2021-12-06 23:59:40,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31155867] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:40,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:40,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 23:59:40,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036774288] [2021-12-06 23:59:40,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:40,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:59:40,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:40,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:59:40,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:59:40,700 INFO L87 Difference]: Start difference. First operand 113 states and 124 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:41,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:41,485 INFO L93 Difference]: Finished difference Result 187 states and 198 transitions. [2021-12-06 23:59:41,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 23:59:41,485 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-06 23:59:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:41,486 INFO L225 Difference]: With dead ends: 187 [2021-12-06 23:59:41,486 INFO L226 Difference]: Without dead ends: 187 [2021-12-06 23:59:41,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2021-12-06 23:59:41,487 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 207 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:41,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 443 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 326 Invalid, 0 Unknown, 78 Unchecked, 0.5s Time] [2021-12-06 23:59:41,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-06 23:59:41,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 128. [2021-12-06 23:59:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 101 states have (on average 1.386138613861386) internal successors, (140), 127 states have internal predecessors, (140), 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) [2021-12-06 23:59:41,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 140 transitions. [2021-12-06 23:59:41,490 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 140 transitions. Word has length 23 [2021-12-06 23:59:41,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:41,490 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 140 transitions. [2021-12-06 23:59:41,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:41,490 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 140 transitions. [2021-12-06 23:59:41,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 23:59:41,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:41,490 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:41,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-12-06 23:59:41,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:41,692 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:41,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:41,693 INFO L85 PathProgramCache]: Analyzing trace with hash 382685369, now seen corresponding path program 2 times [2021-12-06 23:59:41,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:41,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089922606] [2021-12-06 23:59:41,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 23:59:41,694 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:41,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:41,695 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:41,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-12-06 23:59:41,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 23:59:41,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 23:59:41,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-06 23:59:41,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:41,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:41,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:41,901 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 23:59:41,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2021-12-06 23:59:41,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 23:59:41,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 23:59:42,026 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 23:59:42,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-06 23:59:42,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-06 23:59:42,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2021-12-06 23:59:42,175 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 23:59:42,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 55 [2021-12-06 23:59:42,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-12-06 23:59:42,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 23:59:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:42,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:46,548 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:46,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 272 treesize of output 222 [2021-12-06 23:59:46,564 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:46,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 222 treesize of output 172 [2021-12-06 23:59:46,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 938 treesize of output 806 [2021-12-06 23:59:46,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2370 treesize of output 2196 [2021-12-06 23:59:46,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2196 treesize of output 2084 [2021-12-06 23:59:46,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2084 treesize of output 1836 [2021-12-06 23:59:46,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1685 treesize of output 1557 [2021-12-06 23:59:46,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1557 treesize of output 1429 [2021-12-06 23:59:46,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1429 treesize of output 1365 [2021-12-06 23:59:46,702 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:46,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089922606] [2021-12-06 23:59:46,702 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-12-06 23:59:46,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [755824075] [2021-12-06 23:59:46,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 23:59:46,703 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-06 23:59:46,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/cvc4 [2021-12-06 23:59:46,703 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-06 23:59:46,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-12-06 23:59:46,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 23:59:46,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 23:59:46,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 23:59:46,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:46,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:46,984 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 23:59:46,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-12-06 23:59:46,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:46,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 23:59:47,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 23:59:47,051 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 23:59:47,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-06 23:59:47,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-06 23:59:47,165 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 23:59:47,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-06 23:59:47,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-06 23:59:47,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-12-06 23:59:47,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 23:59:47,224 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:47,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:47,367 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (bvule (bvadd (_ bv8 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_548) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_549) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse0))))) (forall ((v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_548) |c_ULTIMATE.start_create_data_~data~0#1.base|) (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32))))) (bvule (bvadd (_ bv4 32) .cse1 .cse2) (bvadd (_ bv8 32) .cse1 .cse2))))) is different from false [2021-12-06 23:59:47,421 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_548) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_549) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1)))))) (forall ((v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (let ((.cse4 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4) v_ArrVal_548) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))) (.cse3 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (bvule (bvadd (_ bv4 32) .cse2 .cse3) (bvadd (_ bv8 32) .cse2 .cse3))))) is different from false [2021-12-06 23:59:47,492 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) v_ArrVal_548) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (.cse1 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_548) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_549) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))))))) is different from false [2021-12-06 23:59:47,571 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_546 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_547 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_546)) (.cse1 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_547) .cse0 v_ArrVal_548) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_549) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1)))))) (forall ((v_ArrVal_546 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_547 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (let ((.cse5 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_547) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_546) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5) v_ArrVal_548) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5))) (.cse4 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (bvule (bvadd .cse3 (_ bv8 32) .cse4) (bvadd .cse3 .cse4 (_ bv12 32)))))) is different from false [2021-12-06 23:59:47,632 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_546 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_547 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_546))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (bvule (bvadd (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_547) .cse1 v_ArrVal_548) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_549) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_546 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_547 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse5 (let ((.cse7 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse7))) (store (store |c_#memory_$Pointer$.offset| .cse6 v_ArrVal_547) (select (select (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_546) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse7) v_ArrVal_548)) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse7)))) (bvule (bvadd (_ bv8 32) .cse4 .cse5) (bvadd .cse4 .cse5 (_ bv12 32)))))) is different from false [2021-12-06 23:59:47,707 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_546 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_547 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_547) (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_546) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) v_ArrVal_548)) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_546 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_547 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_548 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5))) (let ((.cse6 (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_546))) (let ((.cse4 (select (select .cse6 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_547) .cse4 v_ArrVal_548) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5) (_ bv12 32)) (select |c_#length| (select (select (store .cse6 .cse4 v_ArrVal_549) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5))))))))) is different from false [2021-12-06 23:59:47,737 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:47,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 80 [2021-12-06 23:59:47,745 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:47,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 60 [2021-12-06 23:59:47,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 84 [2021-12-06 23:59:47,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 144 [2021-12-06 23:59:47,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 86 [2021-12-06 23:59:47,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 100 [2021-12-06 23:59:47,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 62 [2021-12-06 23:59:47,819 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:47,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 90 [2021-12-06 23:59:47,831 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:47,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 60 [2021-12-06 23:59:47,835 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 23:59:47,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 56 [2021-12-06 23:59:47,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 23:59:47,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-12-06 23:59:47,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-06 23:59:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2021-12-06 23:59:48,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [755824075] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:48,018 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 23:59:48,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2021-12-06 23:59:48,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88151541] [2021-12-06 23:59:48,018 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:48,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-06 23:59:48,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:48,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-06 23:59:48,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=353, Unknown=24, NotChecked=270, Total=756 [2021-12-06 23:59:48,019 INFO L87 Difference]: Start difference. First operand 128 states and 140 transitions. Second operand has 21 states, 20 states have (on average 1.95) internal successors, (39), 21 states have internal predecessors, (39), 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) [2021-12-06 23:59:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:51,843 INFO L93 Difference]: Finished difference Result 167 states and 178 transitions. [2021-12-06 23:59:51,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 23:59:51,844 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.95) internal successors, (39), 21 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-06 23:59:51,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:51,845 INFO L225 Difference]: With dead ends: 167 [2021-12-06 23:59:51,845 INFO L226 Difference]: Without dead ends: 167 [2021-12-06 23:59:51,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=203, Invalid=727, Unknown=24, NotChecked=378, Total=1332 [2021-12-06 23:59:51,846 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 83 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 624 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:51,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 686 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 475 Invalid, 0 Unknown, 624 Unchecked, 2.0s Time] [2021-12-06 23:59:51,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-12-06 23:59:51,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 133. [2021-12-06 23:59:51,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 106 states have (on average 1.3679245283018868) internal successors, (145), 132 states have internal predecessors, (145), 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) [2021-12-06 23:59:51,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 145 transitions. [2021-12-06 23:59:51,849 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 145 transitions. Word has length 23 [2021-12-06 23:59:51,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:51,849 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 145 transitions. [2021-12-06 23:59:51,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.95) internal successors, (39), 21 states have internal predecessors, (39), 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) [2021-12-06 23:59:51,849 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2021-12-06 23:59:51,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 23:59:51,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:51,849 INFO L514 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] [2021-12-06 23:59:51,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-12-06 23:59:52,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2021-12-06 23:59:52,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt [2021-12-06 23:59:52,251 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:52,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:52,252 INFO L85 PathProgramCache]: Analyzing trace with hash -543267076, now seen corresponding path program 1 times [2021-12-06 23:59:52,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:52,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92543050] [2021-12-06 23:59:52,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:52,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:52,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:52,256 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:52,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-12-06 23:59:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 23:59:52,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:52,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:52,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-06 23:59:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:52,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:52,421 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:52,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92543050] [2021-12-06 23:59:52,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92543050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:52,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:52,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:52,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426912663] [2021-12-06 23:59:52,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:52,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:52,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:52,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:52,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:52,422 INFO L87 Difference]: Start difference. First operand 133 states and 145 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-06 23:59:52,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:52,617 INFO L93 Difference]: Finished difference Result 167 states and 178 transitions. [2021-12-06 23:59:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:59:52,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2021-12-06 23:59:52,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:52,618 INFO L225 Difference]: With dead ends: 167 [2021-12-06 23:59:52,618 INFO L226 Difference]: Without dead ends: 167 [2021-12-06 23:59:52,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:59:52,619 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 155 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:52,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 169 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:59:52,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-12-06 23:59:52,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 145. [2021-12-06 23:59:52,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 118 states have (on average 1.4406779661016949) internal successors, (170), 144 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:52,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2021-12-06 23:59:52,622 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 25 [2021-12-06 23:59:52,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:52,622 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2021-12-06 23:59:52,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-06 23:59:52,622 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2021-12-06 23:59:52,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-06 23:59:52,623 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:52,623 INFO L514 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] [2021-12-06 23:59:52,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-12-06 23:59:52,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:52,824 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:52,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:52,825 INFO L85 PathProgramCache]: Analyzing trace with hash 338589996, now seen corresponding path program 1 times [2021-12-06 23:59:52,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:52,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215940157] [2021-12-06 23:59:52,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:52,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:52,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:52,829 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:52,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-12-06 23:59:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:52,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 23:59:52,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:53,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:53,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-12-06 23:59:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:53,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:53,089 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:53,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215940157] [2021-12-06 23:59:53,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215940157] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:53,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:53,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:53,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730568334] [2021-12-06 23:59:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:53,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:59:53,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:53,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:59:53,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:59:53,090 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-12-06 23:59:53,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:53,401 INFO L93 Difference]: Finished difference Result 168 states and 179 transitions. [2021-12-06 23:59:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:59:53,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2021-12-06 23:59:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:53,402 INFO L225 Difference]: With dead ends: 168 [2021-12-06 23:59:53,402 INFO L226 Difference]: Without dead ends: 168 [2021-12-06 23:59:53,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:59:53,403 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 154 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:53,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 144 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 23:59:53,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-12-06 23:59:53,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 146. [2021-12-06 23:59:53,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 119 states have (on average 1.4369747899159664) internal successors, (171), 145 states have internal predecessors, (171), 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) [2021-12-06 23:59:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 171 transitions. [2021-12-06 23:59:53,407 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 171 transitions. Word has length 26 [2021-12-06 23:59:53,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:53,407 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 171 transitions. [2021-12-06 23:59:53,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-12-06 23:59:53,408 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 171 transitions. [2021-12-06 23:59:53,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-06 23:59:53,408 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:53,408 INFO L514 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] [2021-12-06 23:59:53,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-12-06 23:59:53,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:53,609 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:53,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:53,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1906355454, now seen corresponding path program 1 times [2021-12-06 23:59:53,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:53,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938796293] [2021-12-06 23:59:53,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:53,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:53,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:53,615 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:53,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-12-06 23:59:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:53,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 23:59:53,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:53,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:53,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:53,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-12-06 23:59:53,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:53,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:53,795 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:53,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938796293] [2021-12-06 23:59:53,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938796293] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:53,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:53,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:53,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901529395] [2021-12-06 23:59:53,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:53,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:53,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:53,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:53,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:53,796 INFO L87 Difference]: Start difference. First operand 146 states and 171 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) [2021-12-06 23:59:54,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:54,078 INFO L93 Difference]: Finished difference Result 167 states and 183 transitions. [2021-12-06 23:59:54,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:54,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 27 [2021-12-06 23:59:54,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:54,079 INFO L225 Difference]: With dead ends: 167 [2021-12-06 23:59:54,079 INFO L226 Difference]: Without dead ends: 167 [2021-12-06 23:59:54,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:59:54,080 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 78 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:54,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 164 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 23:59:54,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-12-06 23:59:54,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 149. [2021-12-06 23:59:54,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 122 states have (on average 1.4262295081967213) internal successors, (174), 148 states have internal predecessors, (174), 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) [2021-12-06 23:59:54,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 174 transitions. [2021-12-06 23:59:54,083 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 174 transitions. Word has length 27 [2021-12-06 23:59:54,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:54,083 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 174 transitions. [2021-12-06 23:59:54,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) [2021-12-06 23:59:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 174 transitions. [2021-12-06 23:59:54,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-06 23:59:54,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:54,083 INFO L514 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] [2021-12-06 23:59:54,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-12-06 23:59:54,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:54,284 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:54,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:54,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2126823547, now seen corresponding path program 1 times [2021-12-06 23:59:54,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:54,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591246119] [2021-12-06 23:59:54,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:54,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:54,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:54,289 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:54,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-12-06 23:59:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:54,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-06 23:59:54,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:54,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:54,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:54,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:54,671 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-06 23:59:54,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2021-12-06 23:59:54,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-06 23:59:54,803 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 23:59:54,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 38 [2021-12-06 23:59:54,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:54,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:54,840 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:54,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591246119] [2021-12-06 23:59:54,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591246119] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:54,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:54,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 23:59:54,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152511928] [2021-12-06 23:59:54,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:54,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 23:59:54,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:54,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 23:59:54,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:59:54,841 INFO L87 Difference]: Start difference. First operand 149 states and 174 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 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) [2021-12-06 23:59:55,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:55,856 INFO L93 Difference]: Finished difference Result 180 states and 199 transitions. [2021-12-06 23:59:55,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 23:59:55,856 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 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 27 [2021-12-06 23:59:55,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:55,857 INFO L225 Difference]: With dead ends: 180 [2021-12-06 23:59:55,857 INFO L226 Difference]: Without dead ends: 180 [2021-12-06 23:59:55,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2021-12-06 23:59:55,858 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 203 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:55,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 386 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 471 Invalid, 0 Unknown, 72 Unchecked, 0.7s Time] [2021-12-06 23:59:55,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-12-06 23:59:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 154. [2021-12-06 23:59:55,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 128 states have (on average 1.4140625) internal successors, (181), 153 states have internal predecessors, (181), 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) [2021-12-06 23:59:55,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 181 transitions. [2021-12-06 23:59:55,861 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 181 transitions. Word has length 27 [2021-12-06 23:59:55,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:55,861 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 181 transitions. [2021-12-06 23:59:55,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 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) [2021-12-06 23:59:55,862 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 181 transitions. [2021-12-06 23:59:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-06 23:59:55,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:55,862 INFO L514 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] [2021-12-06 23:59:55,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2021-12-06 23:59:56,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:56,062 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:56,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:56,063 INFO L85 PathProgramCache]: Analyzing trace with hash -2126823546, now seen corresponding path program 1 times [2021-12-06 23:59:56,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:56,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278107566] [2021-12-06 23:59:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:56,063 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:56,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:56,064 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:56,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-12-06 23:59:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:56,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 36 conjunts are in the unsatisfiable core [2021-12-06 23:59:56,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:56,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:56,200 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 23:59:56,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-12-06 23:59:56,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 23:59:56,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:56,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:56,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-12-06 23:59:56,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-06 23:59:56,569 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-12-06 23:59:56,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 38 [2021-12-06 23:59:56,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2021-12-06 23:59:56,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:56,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:56,622 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:56,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278107566] [2021-12-06 23:59:56,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278107566] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:56,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:56,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 23:59:56,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712672657] [2021-12-06 23:59:56,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:56,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 23:59:56,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:56,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 23:59:56,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:59:56,623 INFO L87 Difference]: Start difference. First operand 154 states and 181 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 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) [2021-12-06 23:59:58,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:58,500 INFO L93 Difference]: Finished difference Result 262 states and 295 transitions. [2021-12-06 23:59:58,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 23:59:58,501 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 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 27 [2021-12-06 23:59:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:58,503 INFO L225 Difference]: With dead ends: 262 [2021-12-06 23:59:58,503 INFO L226 Difference]: Without dead ends: 262 [2021-12-06 23:59:58,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2021-12-06 23:59:58,504 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 339 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 123 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:58,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 412 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 580 Invalid, 0 Unknown, 123 Unchecked, 1.1s Time] [2021-12-06 23:59:58,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-12-06 23:59:58,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 164. [2021-12-06 23:59:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 138 states have (on average 1.4202898550724639) internal successors, (196), 163 states have internal predecessors, (196), 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) [2021-12-06 23:59:58,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 196 transitions. [2021-12-06 23:59:58,509 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 196 transitions. Word has length 27 [2021-12-06 23:59:58,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:58,509 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 196 transitions. [2021-12-06 23:59:58,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 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) [2021-12-06 23:59:58,509 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 196 transitions. [2021-12-06 23:59:58,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 23:59:58,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:58,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:58,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-12-06 23:59:58,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:59:58,711 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-06 23:59:58,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:58,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1032522897, now seen corresponding path program 1 times [2021-12-06 23:59:58,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:59:58,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861558888] [2021-12-06 23:59:58,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:58,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:59:58,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:59:58,716 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:59:58,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-12-06 23:59:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:58,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 23:59:58,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:58,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:58,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 23:59:59,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-06 23:59:59,122 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 23:59:59,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 18 [2021-12-06 23:59:59,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 23:59:59,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:59,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:59,159 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:59:59,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861558888] [2021-12-06 23:59:59,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861558888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:59,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:59,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 23:59:59,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832229990] [2021-12-06 23:59:59,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:59,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 23:59:59,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:59:59,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 23:59:59,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:59:59,160 INFO L87 Difference]: Start difference. First operand 164 states and 196 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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) [2021-12-07 00:00:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:00,176 INFO L93 Difference]: Finished difference Result 188 states and 210 transitions. [2021-12-07 00:00:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:00:00,177 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-07 00:00:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:00,178 INFO L225 Difference]: With dead ends: 188 [2021-12-07 00:00:00,178 INFO L226 Difference]: Without dead ends: 188 [2021-12-07 00:00:00,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:00:00,179 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 377 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:00,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 293 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:00:00,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-12-07 00:00:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 165. [2021-12-07 00:00:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 139 states have (on average 1.4244604316546763) internal successors, (198), 164 states have internal predecessors, (198), 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) [2021-12-07 00:00:00,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 198 transitions. [2021-12-07 00:00:00,184 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 198 transitions. Word has length 28 [2021-12-07 00:00:00,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:00,184 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 198 transitions. [2021-12-07 00:00:00,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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) [2021-12-07 00:00:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 198 transitions. [2021-12-07 00:00:00,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-07 00:00:00,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:00,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:00,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-12-07 00:00:00,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:00,386 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-07 00:00:00,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:00,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1032522896, now seen corresponding path program 1 times [2021-12-07 00:00:00,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:00,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675083096] [2021-12-07 00:00:00,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:00,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:00,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:00,391 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:00,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-12-07 00:00:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:00:00,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:00,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:00:00,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:00,577 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:00,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675083096] [2021-12-07 00:00:00,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675083096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:00,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:00,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:00:00,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140248889] [2021-12-07 00:00:00,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:00,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:00:00,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:00:00,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:00:00,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:00:00,578 INFO L87 Difference]: Start difference. First operand 165 states and 198 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-12-07 00:00:00,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:00,678 INFO L93 Difference]: Finished difference Result 160 states and 190 transitions. [2021-12-07 00:00:00,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:00:00,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-07 00:00:00,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:00,679 INFO L225 Difference]: With dead ends: 160 [2021-12-07 00:00:00,679 INFO L226 Difference]: Without dead ends: 160 [2021-12-07 00:00:00,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:00:00,680 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 116 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:00,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 49 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:00:00,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-07 00:00:00,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-12-07 00:00:00,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 139 states have (on average 1.3669064748201438) internal successors, (190), 159 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:00:00,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 190 transitions. [2021-12-07 00:00:00,684 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 190 transitions. Word has length 28 [2021-12-07 00:00:00,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:00,684 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 190 transitions. [2021-12-07 00:00:00,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-12-07 00:00:00,684 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 190 transitions. [2021-12-07 00:00:00,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-07 00:00:00,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:00,685 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:00,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2021-12-07 00:00:00,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:00:00,886 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-07 00:00:00,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:00,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1865364083, now seen corresponding path program 3 times [2021-12-07 00:00:00,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:00:00,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394323290] [2021-12-07 00:00:00,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 00:00:00,886 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:00:00,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:00:00,887 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:00:00,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-12-07 00:00:01,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-07 00:00:01,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:00:01,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 35 conjunts are in the unsatisfiable core [2021-12-07 00:00:01,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:01,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:00:01,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:00:01,259 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 00:00:01,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-12-07 00:00:01,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 00:00:01,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 00:00:01,394 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-07 00:00:01,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-07 00:00:01,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-07 00:00:01,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2021-12-07 00:00:01,542 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-07 00:00:01,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 55 [2021-12-07 00:00:01,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2021-12-07 00:00:01,701 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-07 00:00:01,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 55 [2021-12-07 00:00:01,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-12-07 00:00:01,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 00:00:01,823 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:00:01,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:00:02,842 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3)) (.cse1 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (let ((.cse2 (bvadd .cse0 (_ bv4 32) .cse1))) (or (not (bvule (bvadd .cse0 .cse1) .cse2)) (not (bvslt (bvadd |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv1 32)) (_ bv20 32))) (not (bvule .cse2 (select |c_#length| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3)))) (and (forall ((v_ArrVal_857 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (let ((.cse6 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse6) v_ArrVal_857) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse6))) (.cse5 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (bvule (bvadd .cse4 (_ bv4 32) .cse5) (bvadd .cse4 (_ bv8 32) .cse5)))) (forall ((v_ArrVal_857 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_856 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse7 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse8))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse7 v_ArrVal_857) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse8) (_ bv8 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse7 v_ArrVal_856) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse8))))))))))) is different from false [2021-12-07 00:00:26,444 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:00:26,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 628 treesize of output 548 [2021-12-07 00:00:26,471 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:00:26,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 548 treesize of output 368 [2021-12-07 00:00:26,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10612 treesize of output 8098 [2021-12-07 00:00:26,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136444 treesize of output 132070 [2021-12-07 00:00:26,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132070 treesize of output 129158 [2021-12-07 00:00:27,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129158 treesize of output 117254 [2021-12-07 00:00:27,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117254 treesize of output 112134 [2021-12-07 00:00:28,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112134 treesize of output 103798 [2021-12-07 00:00:29,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102006 treesize of output 93174 [2021-12-07 00:00:29,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93174 treesize of output 84342 [2021-12-07 00:00:29,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84342 treesize of output 82646 [2021-12-07 00:00:30,228 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:00:30,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394323290] [2021-12-07 00:00:30,228 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-12-07 00:00:30,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [199135037] [2021-12-07 00:00:30,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 00:00:30,228 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-07 00:00:30,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/cvc4 [2021-12-07 00:00:30,229 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-07 00:00:30,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2021-12-07 00:00:30,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-07 00:00:30,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:00:30,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-07 00:00:30,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:30,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:00:30,790 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 00:00:30,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-12-07 00:00:30,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:00:30,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 00:00:30,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 00:00:30,862 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-07 00:00:30,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-07 00:00:30,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-07 00:00:30,988 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-07 00:00:30,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-07 00:00:30,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-07 00:00:31,137 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-07 00:00:31,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-07 00:00:31,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-07 00:00:31,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-12-07 00:00:31,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 00:00:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:00:31,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:00:31,736 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (.cse1 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (bvule (bvadd .cse0 (_ bv4 32) .cse1) (bvadd .cse0 (_ bv8 32) .cse1)))) (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_933 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) (_ bv8 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_933) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)))))) is different from false [2021-12-07 00:00:31,780 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse1 (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_933 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))) (bvule (bvadd (_ bv8 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_933) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))))))) is different from false [2021-12-07 00:00:31,843 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_933 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1))) (bvule (bvadd (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (_ bv12 32) (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_933) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1)))))) (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse3 (let ((.cse4 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4) v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4)))) (bvule (bvadd (_ bv8 32) .cse2 .cse3) (bvadd .cse2 (_ bv12 32) .cse3))))) is different from false [2021-12-07 00:00:31,908 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_933 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_932)) (.cse1 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1))) (bvule (bvadd (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_931) .cse0 v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_933) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1)))))) (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse4 (let ((.cse5 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_931) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_932) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5) v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5)))) (bvule (bvadd (_ bv8 32) .cse3 .cse4) (bvadd .cse3 .cse4 (_ bv12 32)))))) is different from false [2021-12-07 00:00:32,158 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_933 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_932))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (bvule (bvadd (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_931) .cse1 v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_933) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse5 (let ((.cse7 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse7))) (store (store |c_#memory_$Pointer$.offset| .cse6 v_ArrVal_931) (select (select (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_932) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse7) v_ArrVal_934)) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse7)))) (bvule (bvadd (_ bv8 32) .cse4 .cse5) (bvadd .cse4 .cse5 (_ bv12 32)))))) is different from false [2021-12-07 00:00:32,238 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_933 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_932))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (bvule (bvadd (_ bv16 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_931) .cse1 v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_933) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse5 (let ((.cse7 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse7))) (store (store |c_#memory_$Pointer$.offset| .cse6 v_ArrVal_931) (select (select (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_932) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse7) v_ArrVal_934)) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse7)))) (bvule (bvadd .cse4 .cse5 (_ bv12 32)) (bvadd (_ bv16 32) .cse4 .cse5))))) is different from false [2021-12-07 00:00:32,591 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_929 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_930 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_933 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_930)) (.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_932))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_929) .cse0 v_ArrVal_931) .cse1 v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) (_ bv16 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_933) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_929 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_930 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (let ((.cse9 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_930))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_929) .cse7 v_ArrVal_931) (select (select (store .cse8 .cse7 v_ArrVal_932) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9) v_ArrVal_934))) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))) (.cse6 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (bvule (bvadd .cse5 .cse6 (_ bv12 32)) (bvadd .cse5 (_ bv16 32) .cse6))))) is different from false [2021-12-07 00:00:34,277 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_929 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_930 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse5 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5))) (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_930))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5))) (store (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_929) .cse3 v_ArrVal_931) (select (select (store .cse4 .cse3 v_ArrVal_932) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5) v_ArrVal_934)))) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5))) (.cse1 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (bvule (bvadd .cse0 .cse1 (_ bv12 32)) (bvadd (_ bv16 32) .cse0 .cse1)))) (forall ((v_ArrVal_929 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_930 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_933 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))) (let ((.cse11 (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_930))) (let ((.cse7 (select (select .cse11 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))) (let ((.cse10 (store .cse11 .cse7 v_ArrVal_932))) (let ((.cse8 (select (select .cse10 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))) (bvule (bvadd (_ bv16 32) (select (select (store (store (store |c_#memory_$Pointer$.offset| .cse6 v_ArrVal_929) .cse7 v_ArrVal_931) .cse8 v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (select |c_#length| (select (select (store .cse10 .cse8 v_ArrVal_933) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))))))))))) is different from false [2021-12-07 00:00:34,425 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_929 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_930 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_933 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3))) (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_930))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_932))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3))) (bvule (bvadd (_ bv16 32) (select (select (store (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_929) .cse1 v_ArrVal_931) .cse2 v_ArrVal_934) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_933) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_929 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_934 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_930 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_931 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_932 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (let ((.cse10 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse7 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse10))) (let ((.cse9 (store |c_#memory_$Pointer$.base| .cse7 v_ArrVal_930))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse10))) (store (store (store |c_#memory_$Pointer$.offset| .cse7 v_ArrVal_929) .cse8 v_ArrVal_931) (select (select (store .cse9 .cse8 v_ArrVal_932) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse10) v_ArrVal_934)))) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse10)))) (bvule (bvadd .cse6 (_ bv12 32)) (bvadd (_ bv16 32) .cse6))))) is different from false [2021-12-07 00:00:34,472 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:00:34,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 178 [2021-12-07 00:00:34,494 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:00:34,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 108 [2021-12-07 00:00:34,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120144 treesize of output 103902 [2021-12-07 00:00:38,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1060930 treesize of output 1027132 [2021-12-07 00:00:44,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1027128 treesize of output 950328 [2021-12-07 00:00:46,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 950328 treesize of output 873528 [2021-12-07 00:00:49,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 873528 treesize of output 837688 [2021-12-07 00:00:52,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 837688 treesize of output 741392 [2021-12-07 00:00:55,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 741392 treesize of output 722960 [2021-12-07 00:00:58,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 722960 treesize of output 658344 [2021-12-07 00:01:07,872 WARN L227 SmtUtils]: Spent 6.87s on a formula simplification that was a NOOP. DAG size: 760 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-07 00:01:15,845 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-12-07 00:01:15,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769239321] [2021-12-07 00:01:15,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 00:01:15,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:01:15,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:01:15,846 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:01:15,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-12-07 00:01:16,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-07 00:01:16,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:01:16,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-07 00:01:16,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:16,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:16,216 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 00:01:16,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-12-07 00:01:16,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:16,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 00:01:16,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 00:01:16,488 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-07 00:01:16,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-07 00:01:16,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-07 00:01:16,736 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-07 00:01:16,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-07 00:01:16,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-07 00:01:16,992 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-07 00:01:16,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-12-07 00:01:17,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-12-07 00:01:17,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-12-07 00:01:17,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 00:01:17,195 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:01:17,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:01:17,548 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32))))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_1010 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (bvule (bvadd (_ bv8 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1010) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)))))) is different from false [2021-12-07 00:01:17,623 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (.cse1 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_1010 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_1010) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))))))) is different from false [2021-12-07 00:01:17,745 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (.cse1 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_1010 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_1010) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse4))))))) is different from false [2021-12-07 00:01:17,862 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1010 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1009)) (.cse1 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1))) (bvule (bvadd (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1008) .cse0 v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1010) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse4 (let ((.cse5 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1008) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1009) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5) v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5)))) (bvule (bvadd (_ bv8 32) .cse3 .cse4) (bvadd .cse3 .cse4 (_ bv12 32)))))) is different from false [2021-12-07 00:01:18,157 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse1 (let ((.cse3 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3))) (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1008) (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1009) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3) v_ArrVal_1011)) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3)))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_1010 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse6))) (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_1009))) (let ((.cse5 (select (select .cse7 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse6))) (bvule (bvadd (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_1008) .cse5 v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse6) (_ bv12 32)) (select |c_#length| (select (select (store .cse7 .cse5 v_ArrVal_1010) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse6))))))))) is different from false [2021-12-07 00:01:18,274 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse1 (let ((.cse3 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3))) (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1008) (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1009) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3) v_ArrVal_1011)) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3)))) (bvule (bvadd .cse0 .cse1 (_ bv12 32)) (bvadd (_ bv16 32) .cse0 .cse1)))) (forall ((v_ArrVal_1010 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse6))) (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_1009))) (let ((.cse5 (select (select .cse7 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse6))) (bvule (bvadd (_ bv16 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_1008) .cse5 v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse6)) (select |c_#length| (select (select (store .cse7 .cse5 v_ArrVal_1010) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse6))))))))) is different from false [2021-12-07 00:01:18,447 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1010 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1006 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1007 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1007)) (.cse2 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_1009))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2))) (bvule (bvadd (_ bv16 32) (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1006) .cse0 v_ArrVal_1008) .cse1 v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1010) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1006 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1007 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (let ((.cse9 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1007))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_data_#t~mem8#1.base| v_ArrVal_1006) .cse7 v_ArrVal_1008) (select (select (store .cse8 .cse7 v_ArrVal_1009) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9) v_ArrVal_1011))) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))) (.cse6 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)))) (bvule (bvadd .cse5 .cse6 (_ bv12 32)) (bvadd (_ bv16 32) .cse5 .cse6))))) is different from false [2021-12-07 00:01:20,604 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1006 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1007 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32))) (.cse1 (let ((.cse5 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5))) (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1007))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5))) (store (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1006) .cse3 v_ArrVal_1008) (select (select (store .cse4 .cse3 v_ArrVal_1009) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5) v_ArrVal_1011)))) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse5)))) (bvule (bvadd .cse0 .cse1 (_ bv12 32)) (bvadd (_ bv16 32) .cse0 .cse1)))) (forall ((v_ArrVal_1010 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1006 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1007 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))) (let ((.cse11 (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_1007))) (let ((.cse7 (select (select .cse11 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))) (let ((.cse10 (store .cse11 .cse7 v_ArrVal_1009))) (let ((.cse8 (select (select .cse10 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))) (bvule (bvadd (_ bv16 32) (bvmul |c_ULTIMATE.start_create_data_~counter~0#1| (_ bv4 32)) (select (select (store (store (store |c_#memory_$Pointer$.offset| .cse6 v_ArrVal_1006) .cse7 v_ArrVal_1008) .cse8 v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9)) (select |c_#length| (select (select (store .cse10 .cse8 v_ArrVal_1010) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse9))))))))))) is different from false [2021-12-07 00:01:20,742 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1010 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1006 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1007 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3))) (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1007))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_1009))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3))) (bvule (bvadd (_ bv16 32) (select (select (store (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1006) .cse1 v_ArrVal_1008) .cse2 v_ArrVal_1011) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_1010) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_1011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1006 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1009 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1007 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (let ((.cse10 (bvadd |c_ULTIMATE.start_create_data_~data~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse7 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse10))) (let ((.cse9 (store |c_#memory_$Pointer$.base| .cse7 v_ArrVal_1007))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse10))) (store (store (store |c_#memory_$Pointer$.offset| .cse7 v_ArrVal_1006) .cse8 v_ArrVal_1008) (select (select (store .cse9 .cse8 v_ArrVal_1009) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse10) v_ArrVal_1011)))) |c_ULTIMATE.start_create_data_~data~0#1.base|) .cse10)))) (bvule (bvadd .cse6 (_ bv12 32)) (bvadd (_ bv16 32) .cse6))))) is different from false [2021-12-07 00:01:20,782 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:01:20,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 168 [2021-12-07 00:01:20,804 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:01:20,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 157 treesize of output 108 [2021-12-07 00:01:20,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1130 treesize of output 968 [2021-12-07 00:01:20,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3236 treesize of output 2966 [2021-12-07 00:01:20,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2962 treesize of output 2738 [2021-12-07 00:01:20,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2738 treesize of output 2306 [2021-12-07 00:01:20,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2306 treesize of output 2114 [2021-12-07 00:01:20,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2114 treesize of output 1914 [2021-12-07 00:01:20,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1914 treesize of output 1850 [2021-12-07 00:01:28,664 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:01:28,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 178 [2021-12-07 00:01:28,694 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:01:28,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 108 [2021-12-07 00:01:28,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:01:28,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 460 treesize of output 310 [2021-12-07 00:01:28,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:01:28,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 314 [2021-12-07 00:01:28,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 286 [2021-12-07 00:01:28,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 286 treesize of output 270 [2021-12-07 00:01:28,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 210 [2021-12-07 00:01:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 24 not checked. [2021-12-07 00:01:29,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769239321] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:01:29,335 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:01:29,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-12-07 00:01:29,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174704447] [2021-12-07 00:01:29,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:01:29,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-07 00:01:29,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:01:29,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-07 00:01:29,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=629, Unknown=47, NotChecked=1368, Total=2256 [2021-12-07 00:01:29,337 INFO L87 Difference]: Start difference. First operand 160 states and 190 transitions. Second operand has 26 states, 25 states have (on average 1.96) internal successors, (49), 26 states have internal predecessors, (49), 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) [2021-12-07 00:01:38,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:38,572 INFO L93 Difference]: Finished difference Result 184 states and 205 transitions. [2021-12-07 00:01:38,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 00:01:38,574 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.96) internal successors, (49), 26 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-07 00:01:38,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:38,575 INFO L225 Difference]: With dead ends: 184 [2021-12-07 00:01:38,575 INFO L226 Difference]: Without dead ends: 184 [2021-12-07 00:01:38,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 98 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 19 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=358, Invalid=1231, Unknown=47, NotChecked=1786, Total=3422 [2021-12-07 00:01:38,577 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 91 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 846 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:38,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 859 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 546 Invalid, 0 Unknown, 846 Unchecked, 4.1s Time] [2021-12-07 00:01:38,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-12-07 00:01:38,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 165. [2021-12-07 00:01:38,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 144 states have (on average 1.3541666666666667) internal successors, (195), 164 states have internal predecessors, (195), 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) [2021-12-07 00:01:38,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 195 transitions. [2021-12-07 00:01:38,580 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 195 transitions. Word has length 28 [2021-12-07 00:01:38,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:38,581 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 195 transitions. [2021-12-07 00:01:38,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.96) internal successors, (49), 26 states have internal predecessors, (49), 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) [2021-12-07 00:01:38,581 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 195 transitions. [2021-12-07 00:01:38,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 00:01:38,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:38,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:01:38,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-12-07 00:01:38,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-12-07 00:01:38,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2021-12-07 00:01:39,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt [2021-12-07 00:01:39,183 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-07 00:01:39,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:39,184 INFO L85 PathProgramCache]: Analyzing trace with hash -842646633, now seen corresponding path program 1 times [2021-12-07 00:01:39,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:01:39,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181856261] [2021-12-07 00:01:39,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:39,186 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:01:39,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:01:39,188 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:01:39,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-12-07 00:01:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:39,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-07 00:01:39,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:39,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:39,431 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 00:01:39,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-12-07 00:01:40,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:01:40,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-12-07 00:01:40,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:01:40,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-12-07 00:01:40,671 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 00:01:40,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 14 [2021-12-07 00:01:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:01:40,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:01:40,897 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:01:40,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181856261] [2021-12-07 00:01:40,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181856261] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:01:40,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:01:40,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:01:40,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052958096] [2021-12-07 00:01:40,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:01:40,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:01:40,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:01:40,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:01:40,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:01:40,899 INFO L87 Difference]: Start difference. First operand 165 states and 195 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:01:46,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:46,807 INFO L93 Difference]: Finished difference Result 266 states and 284 transitions. [2021-12-07 00:01:46,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:01:46,808 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-07 00:01:46,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:46,810 INFO L225 Difference]: With dead ends: 266 [2021-12-07 00:01:46,810 INFO L226 Difference]: Without dead ends: 266 [2021-12-07 00:01:46,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2021-12-07 00:01:46,811 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 548 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 113 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:46,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 450 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 551 Invalid, 0 Unknown, 113 Unchecked, 3.3s Time] [2021-12-07 00:01:46,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-12-07 00:01:46,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 165. [2021-12-07 00:01:46,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 144 states have (on average 1.3402777777777777) internal successors, (193), 164 states have internal predecessors, (193), 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) [2021-12-07 00:01:46,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 193 transitions. [2021-12-07 00:01:46,818 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 193 transitions. Word has length 30 [2021-12-07 00:01:46,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:46,818 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 193 transitions. [2021-12-07 00:01:46,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:01:46,818 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 193 transitions. [2021-12-07 00:01:46,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 00:01:46,819 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:46,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:01:46,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-12-07 00:01:47,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:01:47,020 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-07 00:01:47,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:47,021 INFO L85 PathProgramCache]: Analyzing trace with hash -842657618, now seen corresponding path program 1 times [2021-12-07 00:01:47,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:01:47,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705143843] [2021-12-07 00:01:47,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:47,023 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:01:47,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:01:47,025 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:01:47,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-12-07 00:01:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:47,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:01:47,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:47,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 00:01:47,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:01:47,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:01:47,297 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:01:47,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705143843] [2021-12-07 00:01:47,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705143843] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:01:47,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:01:47,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:01:47,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074939296] [2021-12-07 00:01:47,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:01:47,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:01:47,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:01:47,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:01:47,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:01:47,299 INFO L87 Difference]: Start difference. First operand 165 states and 193 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:01:47,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:47,954 INFO L93 Difference]: Finished difference Result 181 states and 206 transitions. [2021-12-07 00:01:47,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:01:47,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-07 00:01:47,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:47,957 INFO L225 Difference]: With dead ends: 181 [2021-12-07 00:01:47,957 INFO L226 Difference]: Without dead ends: 181 [2021-12-07 00:01:47,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:01:47,958 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 27 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:47,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 242 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-07 00:01:47,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-12-07 00:01:47,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 164. [2021-12-07 00:01:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 144 states have (on average 1.3194444444444444) internal successors, (190), 163 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:01:47,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 190 transitions. [2021-12-07 00:01:47,962 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 190 transitions. Word has length 30 [2021-12-07 00:01:47,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:47,962 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 190 transitions. [2021-12-07 00:01:47,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:01:47,962 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 190 transitions. [2021-12-07 00:01:47,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-07 00:01:47,963 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:47,963 INFO L514 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] [2021-12-07 00:01:47,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2021-12-07 00:01:48,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:01:48,164 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-07 00:01:48,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:48,165 INFO L85 PathProgramCache]: Analyzing trace with hash -352582234, now seen corresponding path program 1 times [2021-12-07 00:01:48,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:01:48,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315566888] [2021-12-07 00:01:48,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:48,167 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:01:48,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:01:48,169 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:01:48,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-12-07 00:01:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:48,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 00:01:48,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:48,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 00:01:48,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:01:48,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:01:48,772 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:01:48,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315566888] [2021-12-07 00:01:48,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315566888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:01:48,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:01:48,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:01:48,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3294451] [2021-12-07 00:01:48,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:01:48,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:01:48,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:01:48,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:01:48,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:01:48,773 INFO L87 Difference]: Start difference. First operand 164 states and 190 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:01:49,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:49,607 INFO L93 Difference]: Finished difference Result 179 states and 200 transitions. [2021-12-07 00:01:49,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:01:49,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-12-07 00:01:49,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:49,610 INFO L225 Difference]: With dead ends: 179 [2021-12-07 00:01:49,610 INFO L226 Difference]: Without dead ends: 179 [2021-12-07 00:01:49,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:01:49,611 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 66 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:49,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 201 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:01:49,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-12-07 00:01:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2021-12-07 00:01:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 144 states have (on average 1.2777777777777777) internal successors, (184), 161 states have internal predecessors, (184), 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) [2021-12-07 00:01:49,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 184 transitions. [2021-12-07 00:01:49,615 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 184 transitions. Word has length 31 [2021-12-07 00:01:49,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:49,615 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 184 transitions. [2021-12-07 00:01:49,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:01:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 184 transitions. [2021-12-07 00:01:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-07 00:01:49,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:49,616 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-07 00:01:49,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2021-12-07 00:01:49,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:01:49,817 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-12-07 00:01:49,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:49,818 INFO L85 PathProgramCache]: Analyzing trace with hash -822688907, now seen corresponding path program 1 times [2021-12-07 00:01:49,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:01:49,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831728544] [2021-12-07 00:01:49,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:49,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:01:49,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:01:49,822 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:01:49,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47e37320-4c93-4120-be20-273c71b2b201/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-12-07 00:01:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:49,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-07 00:01:49,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:50,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:01:51,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-12-07 00:01:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:01:58,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:02:02,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44