./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/basename-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL --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 64bit --witnessprinter.graph.data.programhash 65aca230ed2b7a8b5f7f2ccd484c93b0425fe4f5fb1895001f199a0c2754f5f4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:04:45,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:04:45,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:04:45,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:04:45,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:04:45,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:04:45,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:04:45,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:04:45,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:04:45,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:04:45,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:04:45,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:04:45,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:04:45,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:04:45,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:04:45,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:04:45,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:04:45,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:04:45,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:04:45,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:04:45,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:04:45,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:04:45,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:04:45,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:04:45,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:04:45,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:04:45,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:04:45,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:04:45,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:04:45,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:04:45,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:04:45,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:04:45,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:04:45,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:04:45,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:04:45,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:04:45,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:04:45,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:04:45,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:04:45,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:04:45,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:04:45,702 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-11-19 05:04:45,740 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:04:45,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:04:45,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:04:45,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:04:45,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:04:45,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:04:45,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:04:45,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:04:45,742 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:04:45,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:04:45,748 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:04:45,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:04:45,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:04:45,748 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 05:04:45,749 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 05:04:45,749 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 05:04:45,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:04:45,749 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 05:04:45,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:04:45,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:04:45,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:04:45,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:04:45,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:04:45,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:04:45,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:04:45,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:04:45,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:04:45,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:04:45,752 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_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65aca230ed2b7a8b5f7f2ccd484c93b0425fe4f5fb1895001f199a0c2754f5f4 [2021-11-19 05:04:46,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:04:46,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:04:46,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:04:46,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:04:46,090 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:04:46,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/busybox-1.22.0/basename-1.i [2021-11-19 05:04:46,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/data/0d4762733/a3e3b9493a7a4d88bc8f0975ac203a49/FLAG5312d049d [2021-11-19 05:04:46,753 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:04:46,754 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/sv-benchmarks/c/busybox-1.22.0/basename-1.i [2021-11-19 05:04:46,796 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/data/0d4762733/a3e3b9493a7a4d88bc8f0975ac203a49/FLAG5312d049d [2021-11-19 05:04:46,981 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/data/0d4762733/a3e3b9493a7a4d88bc8f0975ac203a49 [2021-11-19 05:04:46,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:04:46,985 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 05:04:47,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:04:47,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:04:47,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:04:47,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:46" (1/1) ... [2021-11-19 05:04:47,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d67e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:47, skipping insertion in model container [2021-11-19 05:04:47,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:46" (1/1) ... [2021-11-19 05:04:47,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:04:47,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:04:47,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/sv-benchmarks/c/busybox-1.22.0/basename-1.i[58057,58070] [2021-11-19 05:04:47,701 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:04:47,715 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 05:04:47,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2124d92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:47, skipping insertion in model container [2021-11-19 05:04:47,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:04:47,716 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-19 05:04:47,721 INFO L158 Benchmark]: Toolchain (without parser) took 731.90ms. Allocated memory is still 104.9MB. Free memory was 62.3MB in the beginning and 70.4MB in the end (delta: -8.1MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2021-11-19 05:04:47,722 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory was 81.3MB in the beginning and 81.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:04:47,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.46ms. Allocated memory is still 104.9MB. Free memory was 62.0MB in the beginning and 70.4MB in the end (delta: -8.4MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2021-11-19 05:04:47,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory was 81.3MB in the beginning and 81.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.46ms. Allocated memory is still 104.9MB. Free memory was 62.0MB in the beginning and 70.4MB in the end (delta: -8.4MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1515]: 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_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL --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 64bit --witnessprinter.graph.data.programhash 65aca230ed2b7a8b5f7f2ccd484c93b0425fe4f5fb1895001f199a0c2754f5f4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:04:49,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:04:49,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:04:49,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:04:49,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:04:49,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:04:49,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:04:49,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:04:49,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:04:49,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:04:49,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:04:49,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:04:49,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:04:49,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:04:49,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:04:49,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:04:49,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:04:49,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:04:49,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:04:49,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:04:49,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:04:49,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:04:49,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:04:49,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:04:49,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:04:49,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:04:49,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:04:49,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:04:49,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:04:49,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:04:49,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:04:49,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:04:49,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:04:49,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:04:49,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:04:49,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:04:49,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:04:49,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:04:49,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:04:50,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:04:50,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:04:50,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2021-11-19 05:04:50,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:04:50,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:04:50,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:04:50,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:04:50,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:04:50,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:04:50,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:04:50,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:04:50,052 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:04:50,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:04:50,054 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:04:50,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:04:50,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:04:50,055 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 05:04:50,055 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 05:04:50,055 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 05:04:50,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:04:50,056 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 05:04:50,056 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 05:04:50,056 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 05:04:50,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:04:50,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:04:50,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:04:50,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:04:50,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:04:50,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:04:50,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:04:50,058 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 05:04:50,058 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 05:04:50,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:04:50,059 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 05:04:50,059 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_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65aca230ed2b7a8b5f7f2ccd484c93b0425fe4f5fb1895001f199a0c2754f5f4 [2021-11-19 05:04:50,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:04:50,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:04:50,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:04:50,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:04:50,434 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:04:50,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/busybox-1.22.0/basename-1.i [2021-11-19 05:04:50,508 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/data/4179689d0/e28ed9df24d343a39b80c7a9926fcc84/FLAGa0895cdfc [2021-11-19 05:04:51,203 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:04:51,204 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/sv-benchmarks/c/busybox-1.22.0/basename-1.i [2021-11-19 05:04:51,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/data/4179689d0/e28ed9df24d343a39b80c7a9926fcc84/FLAGa0895cdfc [2021-11-19 05:04:51,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/data/4179689d0/e28ed9df24d343a39b80c7a9926fcc84 [2021-11-19 05:04:51,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:04:51,373 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 05:04:51,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:04:51,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:04:51,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:04:51,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:51" (1/1) ... [2021-11-19 05:04:51,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657dfb22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:51, skipping insertion in model container [2021-11-19 05:04:51,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:51" (1/1) ... [2021-11-19 05:04:51,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:04:51,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:04:52,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/sv-benchmarks/c/busybox-1.22.0/basename-1.i[58057,58070] [2021-11-19 05:04:52,208 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:04:52,222 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 05:04:52,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:04:52,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/sv-benchmarks/c/busybox-1.22.0/basename-1.i[58057,58070] [2021-11-19 05:04:52,351 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:04:52,370 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:04:52,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/sv-benchmarks/c/busybox-1.22.0/basename-1.i[58057,58070] [2021-11-19 05:04:52,471 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:04:52,562 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:04:52,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:52 WrapperNode [2021-11-19 05:04:52,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:04:52,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:04:52,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:04:52,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:04:52,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:52" (1/1) ... [2021-11-19 05:04:52,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:52" (1/1) ... [2021-11-19 05:04:52,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:52" (1/1) ... [2021-11-19 05:04:52,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:52" (1/1) ... [2021-11-19 05:04:52,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:52" (1/1) ... [2021-11-19 05:04:52,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:52" (1/1) ... [2021-11-19 05:04:52,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:52" (1/1) ... [2021-11-19 05:04:52,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:04:52,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:04:52,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:04:52,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:04:52,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:52" (1/1) ... [2021-11-19 05:04:52,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:04:52,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:04:52,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:04:52,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:04:52,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-19 05:04:52,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:04:52,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-19 05:04:52,855 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 05:04:52,855 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-11-19 05:04:52,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-19 05:04:52,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-19 05:04:52,855 INFO L138 BoogieDeclarations]: Found implementation of procedure syslog [2021-11-19 05:04:52,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2021-11-19 05:04:52,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_get_last_path_component_nostrip [2021-11-19 05:04:52,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_get_last_path_component_strip [2021-11-19 05:04:52,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2021-11-19 05:04:52,856 INFO L138 BoogieDeclarations]: Found implementation of procedure full_write [2021-11-19 05:04:52,856 INFO L138 BoogieDeclarations]: Found implementation of procedure last_char_is [2021-11-19 05:04:52,857 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_write [2021-11-19 05:04:52,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getutent [2021-11-19 05:04:52,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getopt [2021-11-19 05:04:52,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getopt_long [2021-11-19 05:04:52,857 INFO L138 BoogieDeclarations]: Found implementation of procedure read [2021-11-19 05:04:52,857 INFO L138 BoogieDeclarations]: Found implementation of procedure vasprintf [2021-11-19 05:04:52,858 INFO L138 BoogieDeclarations]: Found implementation of procedure write [2021-11-19 05:04:52,858 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-19 05:04:52,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-11-19 05:04:52,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2021-11-19 05:04:52,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-19 05:04:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-11-19 05:04:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-11-19 05:04:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2021-11-19 05:04:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-19 05:04:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 05:04:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-11-19 05:04:52,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-11-19 05:04:52,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-11-19 05:04:52,861 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-11-19 05:04:52,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:04:52,861 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-19 05:04:52,861 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-19 05:04:52,861 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_b_loc [2021-11-19 05:04:52,861 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_tolower_loc [2021-11-19 05:04:52,862 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_toupper_loc [2021-11-19 05:04:52,862 INFO L130 BoogieDeclarations]: Found specification of procedure isalnum [2021-11-19 05:04:52,862 INFO L130 BoogieDeclarations]: Found specification of procedure isalpha [2021-11-19 05:04:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure iscntrl [2021-11-19 05:04:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure isdigit [2021-11-19 05:04:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure islower [2021-11-19 05:04:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure isgraph [2021-11-19 05:04:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure isprint [2021-11-19 05:04:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure ispunct [2021-11-19 05:04:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2021-11-19 05:04:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure isupper [2021-11-19 05:04:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure isxdigit [2021-11-19 05:04:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure tolower [2021-11-19 05:04:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure toupper [2021-11-19 05:04:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure isblank [2021-11-19 05:04:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2021-11-19 05:04:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure toascii [2021-11-19 05:04:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure _toupper [2021-11-19 05:04:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure _tolower [2021-11-19 05:04:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure isalnum_l [2021-11-19 05:04:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure isalpha_l [2021-11-19 05:04:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure iscntrl_l [2021-11-19 05:04:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure isdigit_l [2021-11-19 05:04:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure islower_l [2021-11-19 05:04:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure isgraph_l [2021-11-19 05:04:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure isprint_l [2021-11-19 05:04:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure ispunct_l [2021-11-19 05:04:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure isspace_l [2021-11-19 05:04:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure isupper_l [2021-11-19 05:04:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure isxdigit_l [2021-11-19 05:04:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure isblank_l [2021-11-19 05:04:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure __tolower_l [2021-11-19 05:04:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure tolower_l [2021-11-19 05:04:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper_l [2021-11-19 05:04:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure toupper_l [2021-11-19 05:04:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure getopt [2021-11-19 05:04:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure getopt_long [2021-11-19 05:04:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure getopt_long_only [2021-11-19 05:04:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-19 05:04:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2021-11-19 05:04:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2021-11-19 05:04:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-19 05:04:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 05:04:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-11-19 05:04:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-11-19 05:04:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-19 05:04:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-19 05:04:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2021-11-19 05:04:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-11-19 05:04:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-19 05:04:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2021-11-19 05:04:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2021-11-19 05:04:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2021-11-19 05:04:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2021-11-19 05:04:52,875 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2021-11-19 05:04:52,875 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2021-11-19 05:04:52,875 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-11-19 05:04:52,875 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-19 05:04:52,875 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-11-19 05:04:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2021-11-19 05:04:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2021-11-19 05:04:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-19 05:04:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2021-11-19 05:04:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2021-11-19 05:04:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2021-11-19 05:04:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-11-19 05:04:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-11-19 05:04:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2021-11-19 05:04:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2021-11-19 05:04:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2021-11-19 05:04:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure __bzero [2021-11-19 05:04:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2021-11-19 05:04:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2021-11-19 05:04:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2021-11-19 05:04:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure index [2021-11-19 05:04:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2021-11-19 05:04:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-11-19 05:04:52,878 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-19 05:04:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2021-11-19 05:04:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-11-19 05:04:52,879 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2021-11-19 05:04:52,880 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2021-11-19 05:04:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2021-11-19 05:04:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2021-11-19 05:04:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2021-11-19 05:04:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure access [2021-11-19 05:04:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure faccessat [2021-11-19 05:04:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure lseek [2021-11-19 05:04:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure close [2021-11-19 05:04:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure read [2021-11-19 05:04:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure write [2021-11-19 05:04:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure pread [2021-11-19 05:04:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure pwrite [2021-11-19 05:04:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure pipe [2021-11-19 05:04:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure alarm [2021-11-19 05:04:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2021-11-19 05:04:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure ualarm [2021-11-19 05:04:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure usleep [2021-11-19 05:04:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure pause [2021-11-19 05:04:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure chown [2021-11-19 05:04:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure fchown [2021-11-19 05:04:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure lchown [2021-11-19 05:04:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure fchownat [2021-11-19 05:04:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure chdir [2021-11-19 05:04:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure fchdir [2021-11-19 05:04:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure getcwd [2021-11-19 05:04:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure getwd [2021-11-19 05:04:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure dup [2021-11-19 05:04:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure dup2 [2021-11-19 05:04:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure execve [2021-11-19 05:04:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure fexecve [2021-11-19 05:04:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure execv [2021-11-19 05:04:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure execle [2021-11-19 05:04:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure execl [2021-11-19 05:04:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure execvp [2021-11-19 05:04:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure execlp [2021-11-19 05:04:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure nice [2021-11-19 05:04:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure _exit [2021-11-19 05:04:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure pathconf [2021-11-19 05:04:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure fpathconf [2021-11-19 05:04:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure sysconf [2021-11-19 05:04:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure confstr [2021-11-19 05:04:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure getpid [2021-11-19 05:04:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure getppid [2021-11-19 05:04:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure getpgrp [2021-11-19 05:04:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure __getpgid [2021-11-19 05:04:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure getpgid [2021-11-19 05:04:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure setpgid [2021-11-19 05:04:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure setpgrp [2021-11-19 05:04:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure setsid [2021-11-19 05:04:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure getsid [2021-11-19 05:04:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure getuid [2021-11-19 05:04:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure geteuid [2021-11-19 05:04:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure getgid [2021-11-19 05:04:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure getegid [2021-11-19 05:04:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure getgroups [2021-11-19 05:04:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure setuid [2021-11-19 05:04:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure setreuid [2021-11-19 05:04:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure seteuid [2021-11-19 05:04:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure setgid [2021-11-19 05:04:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure setregid [2021-11-19 05:04:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure setegid [2021-11-19 05:04:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure fork [2021-11-19 05:04:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure vfork [2021-11-19 05:04:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure ttyname [2021-11-19 05:04:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure ttyname_r [2021-11-19 05:04:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure isatty [2021-11-19 05:04:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure ttyslot [2021-11-19 05:04:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure link [2021-11-19 05:04:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure linkat [2021-11-19 05:04:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure symlink [2021-11-19 05:04:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure readlink [2021-11-19 05:04:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure symlinkat [2021-11-19 05:04:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure readlinkat [2021-11-19 05:04:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure unlink [2021-11-19 05:04:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure unlinkat [2021-11-19 05:04:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure rmdir [2021-11-19 05:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure tcgetpgrp [2021-11-19 05:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure tcsetpgrp [2021-11-19 05:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure getlogin [2021-11-19 05:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure getlogin_r [2021-11-19 05:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure setlogin [2021-11-19 05:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure gethostname [2021-11-19 05:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure sethostname [2021-11-19 05:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure sethostid [2021-11-19 05:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure getdomainname [2021-11-19 05:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure setdomainname [2021-11-19 05:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure vhangup [2021-11-19 05:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure revoke [2021-11-19 05:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure profil [2021-11-19 05:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure acct [2021-11-19 05:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure getusershell [2021-11-19 05:04:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure endusershell [2021-11-19 05:04:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure setusershell [2021-11-19 05:04:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure daemon [2021-11-19 05:04:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure chroot [2021-11-19 05:04:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure getpass [2021-11-19 05:04:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure fsync [2021-11-19 05:04:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure gethostid [2021-11-19 05:04:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure sync [2021-11-19 05:04:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure getpagesize [2021-11-19 05:04:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure getdtablesize [2021-11-19 05:04:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure truncate [2021-11-19 05:04:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure ftruncate [2021-11-19 05:04:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure brk [2021-11-19 05:04:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure sbrk [2021-11-19 05:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure syscall [2021-11-19 05:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2021-11-19 05:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure fdatasync [2021-11-19 05:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-19 05:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-19 05:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-19 05:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-19 05:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-19 05:04:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-19 05:04:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-19 05:04:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-19 05:04:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-19 05:04:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-19 05:04:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-19 05:04:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-19 05:04:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-19 05:04:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-19 05:04:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-19 05:04:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-19 05:04:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-19 05:04:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-19 05:04:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-19 05:04:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-19 05:04:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-19 05:04:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-19 05:04:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-19 05:04:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-19 05:04:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-19 05:04:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-19 05:04:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-19 05:04:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-19 05:04:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-19 05:04:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-19 05:04:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-19 05:04:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-19 05:04:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-19 05:04:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-19 05:04:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-19 05:04:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-19 05:04:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-19 05:04:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-19 05:04:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-19 05:04:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-19 05:04:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-19 05:04:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-19 05:04:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-19 05:04:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-19 05:04:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-19 05:04:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-19 05:04:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-19 05:04:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-19 05:04:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-19 05:04:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-19 05:04:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-19 05:04:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-19 05:04:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-19 05:04:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-19 05:04:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-11-19 05:04:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-19 05:04:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-19 05:04:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-19 05:04:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-19 05:04:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-19 05:04:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-19 05:04:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-19 05:04:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-19 05:04:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-19 05:04:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-19 05:04:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-19 05:04:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-19 05:04:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-19 05:04:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-19 05:04:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-19 05:04:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-19 05:04:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-19 05:04:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-19 05:04:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-19 05:04:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-19 05:04:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-19 05:04:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-19 05:04:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-19 05:04:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-19 05:04:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-19 05:04:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-19 05:04:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-19 05:04:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-19 05:04:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-19 05:04:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-19 05:04:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-19 05:04:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-19 05:04:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-19 05:04:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-19 05:04:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-19 05:04:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-19 05:04:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-19 05:04:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-19 05:04:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-19 05:04:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-19 05:04:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-19 05:04:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-19 05:04:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-19 05:04:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-19 05:04:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure gettimeofday [2021-11-19 05:04:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure settimeofday [2021-11-19 05:04:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure adjtime [2021-11-19 05:04:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure getitimer [2021-11-19 05:04:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure setitimer [2021-11-19 05:04:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure utimes [2021-11-19 05:04:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure lutimes [2021-11-19 05:04:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure futimes [2021-11-19 05:04:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure login_tty [2021-11-19 05:04:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure login [2021-11-19 05:04:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure logout [2021-11-19 05:04:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure logwtmp [2021-11-19 05:04:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure updwtmp [2021-11-19 05:04:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure utmpname [2021-11-19 05:04:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure getutent [2021-11-19 05:04:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure setutent [2021-11-19 05:04:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure endutent [2021-11-19 05:04:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure getutid [2021-11-19 05:04:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure getutline [2021-11-19 05:04:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure pututline [2021-11-19 05:04:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure getutent_r [2021-11-19 05:04:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure getutid_r [2021-11-19 05:04:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure getutline_r [2021-11-19 05:04:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure bb_get_last_path_component_nostrip [2021-11-19 05:04:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure bb_get_last_path_component_strip [2021-11-19 05:04:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2021-11-19 05:04:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure full_write [2021-11-19 05:04:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure last_char_is [2021-11-19 05:04:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure safe_write [2021-11-19 05:04:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure syslog [2021-11-19 05:04:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2021-11-19 05:04:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 05:04:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 05:04:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 05:04:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 05:04:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 05:04:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 05:04:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure vasprintf [2021-11-19 05:04:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 05:04:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 05:04:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-19 05:04:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:04:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-19 05:04:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:04:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 05:04:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:04:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-19 05:04:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 05:04:53,630 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:04:53,633 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:04:55,675 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:04:55,696 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:04:55,696 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-19 05:04:55,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:55 BoogieIcfgContainer [2021-11-19 05:04:55,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:04:55,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:04:55,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:04:55,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:04:55,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:04:51" (1/3) ... [2021-11-19 05:04:55,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b93ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:04:55, skipping insertion in model container [2021-11-19 05:04:55,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:52" (2/3) ... [2021-11-19 05:04:55,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b93ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:04:55, skipping insertion in model container [2021-11-19 05:04:55,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:55" (3/3) ... [2021-11-19 05:04:55,714 INFO L111 eAbstractionObserver]: Analyzing ICFG basename-1.i [2021-11-19 05:04:55,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:04:55,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 136 error locations. [2021-11-19 05:04:55,789 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:04:55,798 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:04:55,798 INFO L340 AbstractCegarLoop]: Starting to check reachability of 136 error locations. [2021-11-19 05:04:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 310 states, 182 states have (on average 1.8186813186813187) internal successors, (331), 282 states have internal predecessors, (331), 13 states have call successors, (13), 11 states have call predecessors, (13), 11 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-19 05:04:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 05:04:55,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:04:55,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:04:55,839 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:04:55,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:04:55,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1256986699, now seen corresponding path program 1 times [2021-11-19 05:04:55,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:04:55,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070482666] [2021-11-19 05:04:55,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:04:55,891 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:04:55,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:04:55,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:04:55,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 05:04:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:04:56,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 05:04:56,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:04:56,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 05:04:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:04:56,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:04:56,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:04:56,447 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:04:56,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070482666] [2021-11-19 05:04:56,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070482666] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:04:56,448 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:04:56,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 05:04:56,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781899319] [2021-11-19 05:04:56,451 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:04:56,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:04:56,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:04:56,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:04:56,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:04:56,484 INFO L87 Difference]: Start difference. First operand has 310 states, 182 states have (on average 1.8186813186813187) internal successors, (331), 282 states have internal predecessors, (331), 13 states have call successors, (13), 11 states have call predecessors, (13), 11 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:04:57,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:04:57,181 INFO L93 Difference]: Finished difference Result 283 states and 317 transitions. [2021-11-19 05:04:57,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:04:57,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-11-19 05:04:57,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:04:57,205 INFO L225 Difference]: With dead ends: 283 [2021-11-19 05:04:57,205 INFO L226 Difference]: Without dead ends: 280 [2021-11-19 05:04:57,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:04:57,210 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 60 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 05:04:57,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 450 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 05:04:57,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-19 05:04:57,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 264. [2021-11-19 05:04:57,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 154 states have (on average 1.7792207792207793) internal successors, (274), 242 states have internal predecessors, (274), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:04:57,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 297 transitions. [2021-11-19 05:04:57,305 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 297 transitions. Word has length 7 [2021-11-19 05:04:57,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:04:57,306 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 297 transitions. [2021-11-19 05:04:57,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:04:57,306 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 297 transitions. [2021-11-19 05:04:57,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 05:04:57,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:04:57,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:04:57,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:04:57,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:04:57,519 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:04:57,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:04:57,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1256986698, now seen corresponding path program 1 times [2021-11-19 05:04:57,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:04:57,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787460402] [2021-11-19 05:04:57,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:04:57,521 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:04:57,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:04:57,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:04:57,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 05:04:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:04:57,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 05:04:57,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:04:57,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 05:04:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:04:57,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:04:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:04:58,060 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:04:58,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787460402] [2021-11-19 05:04:58,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787460402] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:04:58,060 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:04:58,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 05:04:58,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715148985] [2021-11-19 05:04:58,060 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:04:58,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 05:04:58,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:04:58,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 05:04:58,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 05:04:58,063 INFO L87 Difference]: Start difference. First operand 264 states and 297 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:04:59,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:04:59,279 INFO L93 Difference]: Finished difference Result 263 states and 296 transitions. [2021-11-19 05:04:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:04:59,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-11-19 05:04:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:04:59,283 INFO L225 Difference]: With dead ends: 263 [2021-11-19 05:04:59,283 INFO L226 Difference]: Without dead ends: 263 [2021-11-19 05:04:59,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 05:04:59,285 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 18 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:04:59,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 494 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 05:04:59,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-11-19 05:04:59,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2021-11-19 05:04:59,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 154 states have (on average 1.7727272727272727) internal successors, (273), 241 states have internal predecessors, (273), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:04:59,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 296 transitions. [2021-11-19 05:04:59,302 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 296 transitions. Word has length 7 [2021-11-19 05:04:59,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:04:59,302 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 296 transitions. [2021-11-19 05:04:59,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:04:59,303 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 296 transitions. [2021-11-19 05:04:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 05:04:59,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:04:59,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:04:59,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 05:04:59,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:04:59,519 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr3REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:04:59,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:04:59,519 INFO L85 PathProgramCache]: Analyzing trace with hash 929638407, now seen corresponding path program 1 times [2021-11-19 05:04:59,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:04:59,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765327747] [2021-11-19 05:04:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:04:59,521 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:04:59,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:04:59,522 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:04:59,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 05:04:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:04:59,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:04:59,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:04:59,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 05:04:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:04:59,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:00,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:05:00,477 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:00,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765327747] [2021-11-19 05:05:00,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765327747] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:05:00,478 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:05:00,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 05:05:00,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783755378] [2021-11-19 05:05:00,478 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:05:00,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:05:00,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:00,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:05:00,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:05:00,480 INFO L87 Difference]: Start difference. First operand 263 states and 296 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:05:03,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:03,584 INFO L93 Difference]: Finished difference Result 272 states and 307 transitions. [2021-11-19 05:05:03,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:05:03,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-19 05:05:03,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:03,588 INFO L225 Difference]: With dead ends: 272 [2021-11-19 05:05:03,588 INFO L226 Difference]: Without dead ends: 272 [2021-11-19 05:05:03,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:05:03,589 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 20 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:03,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 899 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-19 05:05:03,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-19 05:05:03,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 269. [2021-11-19 05:05:03,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 160 states have (on average 1.75) internal successors, (280), 247 states have internal predecessors, (280), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:05:03,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 303 transitions. [2021-11-19 05:05:03,607 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 303 transitions. Word has length 10 [2021-11-19 05:05:03,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:03,607 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 303 transitions. [2021-11-19 05:05:03,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:05:03,627 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 303 transitions. [2021-11-19 05:05:03,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 05:05:03,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:03,628 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:03,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 05:05:03,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:03,834 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:03,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:03,835 INFO L85 PathProgramCache]: Analyzing trace with hash -362378867, now seen corresponding path program 1 times [2021-11-19 05:05:03,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:03,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020934804] [2021-11-19 05:05:03,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:05:03,836 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:03,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:03,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:03,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 05:05:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:05:04,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:05:04,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:04,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 05:05:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:05:04,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:05:07,043 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:07,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020934804] [2021-11-19 05:05:07,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020934804] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:05:07,044 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 05:05:07,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-11-19 05:05:07,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858797798] [2021-11-19 05:05:07,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 05:05:07,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 05:05:07,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:07,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 05:05:07,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:05:07,046 INFO L87 Difference]: Start difference. First operand 269 states and 303 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:05:13,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:13,478 INFO L93 Difference]: Finished difference Result 279 states and 312 transitions. [2021-11-19 05:05:13,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:05:13,480 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-11-19 05:05:13,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:13,482 INFO L225 Difference]: With dead ends: 279 [2021-11-19 05:05:13,483 INFO L226 Difference]: Without dead ends: 279 [2021-11-19 05:05:13,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:05:13,484 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 29 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:13,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 1312 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-11-19 05:05:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-19 05:05:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2021-11-19 05:05:13,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 171 states have (on average 1.6900584795321638) internal successors, (289), 257 states have internal predecessors, (289), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:05:13,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 312 transitions. [2021-11-19 05:05:13,498 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 312 transitions. Word has length 18 [2021-11-19 05:05:13,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:13,499 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 312 transitions. [2021-11-19 05:05:13,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 05:05:13,499 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 312 transitions. [2021-11-19 05:05:13,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-19 05:05:13,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:13,501 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:13,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 05:05:13,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:13,711 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:13,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:13,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1857969776, now seen corresponding path program 1 times [2021-11-19 05:05:13,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:13,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328637448] [2021-11-19 05:05:13,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:05:13,712 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:13,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:13,713 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:13,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 05:05:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:05:14,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 05:05:14,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:14,215 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:05:14,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:14,429 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:05:14,429 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:14,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328637448] [2021-11-19 05:05:14,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328637448] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:05:14,430 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 05:05:14,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-11-19 05:05:14,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546071265] [2021-11-19 05:05:14,430 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 05:05:14,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 05:05:14,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:14,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 05:05:14,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-11-19 05:05:14,432 INFO L87 Difference]: Start difference. First operand 279 states and 312 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 05:05:14,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:14,930 INFO L93 Difference]: Finished difference Result 299 states and 332 transitions. [2021-11-19 05:05:14,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 05:05:14,931 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2021-11-19 05:05:14,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:14,933 INFO L225 Difference]: With dead ends: 299 [2021-11-19 05:05:14,934 INFO L226 Difference]: Without dead ends: 299 [2021-11-19 05:05:14,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2021-11-19 05:05:14,935 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 30 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:14,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 2930 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 05:05:14,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-11-19 05:05:14,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2021-11-19 05:05:14,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 191 states have (on average 1.617801047120419) internal successors, (309), 277 states have internal predecessors, (309), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:05:14,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 332 transitions. [2021-11-19 05:05:14,947 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 332 transitions. Word has length 37 [2021-11-19 05:05:14,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:14,947 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 332 transitions. [2021-11-19 05:05:14,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 05:05:14,948 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 332 transitions. [2021-11-19 05:05:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-19 05:05:14,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:14,950 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:14,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 05:05:15,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:15,163 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr4REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:15,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:15,163 INFO L85 PathProgramCache]: Analyzing trace with hash -2123048031, now seen corresponding path program 2 times [2021-11-19 05:05:15,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:15,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256043926] [2021-11-19 05:05:15,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 05:05:15,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:15,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:15,166 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:15,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 05:05:15,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 05:05:15,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:05:15,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 05:05:15,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:15,666 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 05:05:15,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-19 05:05:15,703 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:15,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:15,801 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:15,801 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:15,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256043926] [2021-11-19 05:05:15,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256043926] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:05:15,802 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:05:15,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 05:05:15,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654324590] [2021-11-19 05:05:15,802 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:05:15,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:05:15,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:15,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:05:15,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:05:15,803 INFO L87 Difference]: Start difference. First operand 299 states and 332 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:05:16,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:16,298 INFO L93 Difference]: Finished difference Result 310 states and 344 transitions. [2021-11-19 05:05:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:05:16,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-19 05:05:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:16,301 INFO L225 Difference]: With dead ends: 310 [2021-11-19 05:05:16,301 INFO L226 Difference]: Without dead ends: 310 [2021-11-19 05:05:16,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:05:16,302 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 45 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:16,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 452 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 05:05:16,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-11-19 05:05:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 294. [2021-11-19 05:05:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 191 states have (on average 1.5916230366492146) internal successors, (304), 272 states have internal predecessors, (304), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:05:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 327 transitions. [2021-11-19 05:05:16,312 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 327 transitions. Word has length 57 [2021-11-19 05:05:16,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:16,313 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 327 transitions. [2021-11-19 05:05:16,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:05:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 327 transitions. [2021-11-19 05:05:16,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-19 05:05:16,314 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:16,315 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:16,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 05:05:16,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:16,523 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr5REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:16,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:16,523 INFO L85 PathProgramCache]: Analyzing trace with hash -2123048030, now seen corresponding path program 1 times [2021-11-19 05:05:16,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:16,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951920849] [2021-11-19 05:05:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:05:16,524 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:16,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:16,525 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:16,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 05:05:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:05:17,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:05:17,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:17,262 INFO L354 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2021-11-19 05:05:17,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2021-11-19 05:05:17,405 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:17,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:18,029 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:18,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951920849] [2021-11-19 05:05:18,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951920849] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:05:18,029 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:05:18,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 05:05:18,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320008432] [2021-11-19 05:05:18,030 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:05:18,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 05:05:18,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:18,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 05:05:18,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 05:05:18,031 INFO L87 Difference]: Start difference. First operand 294 states and 327 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:05:20,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:20,848 INFO L93 Difference]: Finished difference Result 326 states and 361 transitions. [2021-11-19 05:05:20,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:05:20,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2021-11-19 05:05:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:20,852 INFO L225 Difference]: With dead ends: 326 [2021-11-19 05:05:20,853 INFO L226 Difference]: Without dead ends: 326 [2021-11-19 05:05:20,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:05:20,854 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 132 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:20,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 1487 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 05:05:20,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-11-19 05:05:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 306. [2021-11-19 05:05:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 203 states have (on average 1.6009852216748768) internal successors, (325), 283 states have internal predecessors, (325), 13 states have call successors, (13), 11 states have call predecessors, (13), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-19 05:05:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 350 transitions. [2021-11-19 05:05:20,866 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 350 transitions. Word has length 57 [2021-11-19 05:05:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:20,866 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 350 transitions. [2021-11-19 05:05:20,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:05:20,867 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 350 transitions. [2021-11-19 05:05:20,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-19 05:05:20,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:20,868 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:20,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 05:05:21,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:21,084 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr7REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:21,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:21,084 INFO L85 PathProgramCache]: Analyzing trace with hash -34932301, now seen corresponding path program 1 times [2021-11-19 05:05:21,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:21,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776495594] [2021-11-19 05:05:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:05:21,086 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:21,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:21,086 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:21,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 05:05:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:05:21,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 05:05:21,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:21,735 INFO L354 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2021-11-19 05:05:21,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 37 [2021-11-19 05:05:21,741 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 38 treesize of output 36 [2021-11-19 05:05:22,418 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-19 05:05:22,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 62 [2021-11-19 05:05:22,431 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 05:05:22,431 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 56 treesize of output 52 [2021-11-19 05:05:22,674 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:22,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:30,351 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-19 05:05:30,352 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 47 treesize of output 46 [2021-11-19 05:05:33,247 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 58 treesize of output 56 [2021-11-19 05:05:33,628 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:33,628 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:33,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776495594] [2021-11-19 05:05:33,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776495594] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:05:33,629 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:05:33,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-19 05:05:33,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503484208] [2021-11-19 05:05:33,629 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:05:33,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 05:05:33,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:33,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 05:05:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=162, Unknown=3, NotChecked=0, Total=210 [2021-11-19 05:05:33,631 INFO L87 Difference]: Start difference. First operand 306 states and 350 transitions. Second operand has 15 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:05:36,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:36,370 INFO L93 Difference]: Finished difference Result 305 states and 349 transitions. [2021-11-19 05:05:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 05:05:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 60 [2021-11-19 05:05:36,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:36,374 INFO L225 Difference]: With dead ends: 305 [2021-11-19 05:05:36,374 INFO L226 Difference]: Without dead ends: 305 [2021-11-19 05:05:36,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=57, Invalid=212, Unknown=3, NotChecked=0, Total=272 [2021-11-19 05:05:36,375 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 23 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 423 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:36,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 2236 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 423 Unchecked, 2.5s Time] [2021-11-19 05:05:36,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-11-19 05:05:36,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2021-11-19 05:05:36,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 204 states have (on average 1.588235294117647) internal successors, (324), 282 states have internal predecessors, (324), 13 states have call successors, (13), 11 states have call predecessors, (13), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-19 05:05:36,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 349 transitions. [2021-11-19 05:05:36,393 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 349 transitions. Word has length 60 [2021-11-19 05:05:36,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:36,393 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 349 transitions. [2021-11-19 05:05:36,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:05:36,394 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 349 transitions. [2021-11-19 05:05:36,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-19 05:05:36,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:36,395 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:36,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 05:05:36,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:36,611 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __mainErr0REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:36,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:36,611 INFO L85 PathProgramCache]: Analyzing trace with hash 789875174, now seen corresponding path program 1 times [2021-11-19 05:05:36,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:36,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879321033] [2021-11-19 05:05:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:05:36,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:36,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:36,613 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:36,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 05:05:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:05:36,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:05:36,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:37,157 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:37,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:37,284 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:37,285 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:37,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879321033] [2021-11-19 05:05:37,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879321033] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:05:37,285 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:05:37,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 05:05:37,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590636281] [2021-11-19 05:05:37,286 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:05:37,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 05:05:37,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:37,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 05:05:37,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:05:37,287 INFO L87 Difference]: Start difference. First operand 305 states and 349 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:05:38,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:38,263 INFO L93 Difference]: Finished difference Result 322 states and 376 transitions. [2021-11-19 05:05:38,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:05:38,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2021-11-19 05:05:38,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:38,266 INFO L225 Difference]: With dead ends: 322 [2021-11-19 05:05:38,267 INFO L226 Difference]: Without dead ends: 322 [2021-11-19 05:05:38,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:05:38,267 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 234 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:38,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 637 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 05:05:38,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-11-19 05:05:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 298. [2021-11-19 05:05:38,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 204 states have (on average 1.553921568627451) internal successors, (317), 275 states have internal predecessors, (317), 13 states have call successors, (13), 11 states have call predecessors, (13), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-19 05:05:38,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 342 transitions. [2021-11-19 05:05:38,279 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 342 transitions. Word has length 62 [2021-11-19 05:05:38,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:38,279 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 342 transitions. [2021-11-19 05:05:38,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:05:38,279 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 342 transitions. [2021-11-19 05:05:38,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-19 05:05:38,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:38,281 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:38,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-19 05:05:38,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:38,495 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __mainErr1REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:38,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:38,495 INFO L85 PathProgramCache]: Analyzing trace with hash 789875175, now seen corresponding path program 1 times [2021-11-19 05:05:38,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:38,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930874940] [2021-11-19 05:05:38,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:05:38,497 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:38,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:38,498 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:38,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 05:05:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:05:38,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 05:05:38,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:39,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:39,318 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:39,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930874940] [2021-11-19 05:05:39,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930874940] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:05:39,319 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:05:39,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-19 05:05:39,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449974355] [2021-11-19 05:05:39,319 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:05:39,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 05:05:39,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:39,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 05:05:39,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 05:05:39,327 INFO L87 Difference]: Start difference. First operand 298 states and 342 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:05:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:39,800 INFO L93 Difference]: Finished difference Result 306 states and 340 transitions. [2021-11-19 05:05:39,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:05:39,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 62 [2021-11-19 05:05:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:39,803 INFO L225 Difference]: With dead ends: 306 [2021-11-19 05:05:39,803 INFO L226 Difference]: Without dead ends: 306 [2021-11-19 05:05:39,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-19 05:05:39,804 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 162 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:39,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 1239 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 05:05:39,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-19 05:05:39,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 286. [2021-11-19 05:05:39,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 193 states have (on average 1.5336787564766838) internal successors, (296), 264 states have internal predecessors, (296), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:05:39,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 319 transitions. [2021-11-19 05:05:39,814 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 319 transitions. Word has length 62 [2021-11-19 05:05:39,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:39,815 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 319 transitions. [2021-11-19 05:05:39,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:05:39,815 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 319 transitions. [2021-11-19 05:05:39,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-19 05:05:39,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:39,816 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:39,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 05:05:40,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:40,034 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr9REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:40,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:40,034 INFO L85 PathProgramCache]: Analyzing trace with hash 789814516, now seen corresponding path program 1 times [2021-11-19 05:05:40,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:40,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875335934] [2021-11-19 05:05:40,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:05:40,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:40,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:40,036 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:40,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 05:05:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:05:40,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:05:40,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:40,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:40,910 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 12 treesize of output 10 [2021-11-19 05:05:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:41,418 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:41,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875335934] [2021-11-19 05:05:41,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875335934] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:05:41,419 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:05:41,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 05:05:41,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33271115] [2021-11-19 05:05:41,419 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:05:41,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 05:05:41,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:41,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 05:05:41,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:05:41,421 INFO L87 Difference]: Start difference. First operand 286 states and 319 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:05:43,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:43,286 INFO L93 Difference]: Finished difference Result 338 states and 374 transitions. [2021-11-19 05:05:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:05:43,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2021-11-19 05:05:43,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:43,288 INFO L225 Difference]: With dead ends: 338 [2021-11-19 05:05:43,289 INFO L226 Difference]: Without dead ends: 338 [2021-11-19 05:05:43,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:05:43,290 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 182 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:43,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 1428 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 05:05:43,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-11-19 05:05:43,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 284. [2021-11-19 05:05:43,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 193 states have (on average 1.5233160621761659) internal successors, (294), 262 states have internal predecessors, (294), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:05:43,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 317 transitions. [2021-11-19 05:05:43,299 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 317 transitions. Word has length 62 [2021-11-19 05:05:43,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:43,300 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 317 transitions. [2021-11-19 05:05:43,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:05:43,300 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 317 transitions. [2021-11-19 05:05:43,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-19 05:05:43,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:43,301 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:43,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 05:05:43,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:43,515 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr10REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:43,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:43,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1285553233, now seen corresponding path program 1 times [2021-11-19 05:05:43,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:43,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342536272] [2021-11-19 05:05:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:05:43,516 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:43,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:43,517 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:43,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 05:05:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:05:43,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 05:05:43,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:44,106 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 05:05:44,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-19 05:05:44,179 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 05:05:44,179 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 15 treesize of output 20 [2021-11-19 05:05:44,226 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:44,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:44,375 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:44,375 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:44,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342536272] [2021-11-19 05:05:44,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342536272] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:05:44,375 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:05:44,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 05:05:44,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278205389] [2021-11-19 05:05:44,375 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:05:44,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:05:44,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:44,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:05:44,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:05:44,376 INFO L87 Difference]: Start difference. First operand 284 states and 317 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:05:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:44,920 INFO L93 Difference]: Finished difference Result 291 states and 325 transitions. [2021-11-19 05:05:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:05:44,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2021-11-19 05:05:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:44,923 INFO L225 Difference]: With dead ends: 291 [2021-11-19 05:05:44,923 INFO L226 Difference]: Without dead ends: 291 [2021-11-19 05:05:44,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:05:44,924 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 33 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:44,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 437 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 05:05:44,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-19 05:05:44,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 288. [2021-11-19 05:05:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 198 states have (on average 1.5252525252525253) internal successors, (302), 266 states have internal predecessors, (302), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:05:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 325 transitions. [2021-11-19 05:05:44,934 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 325 transitions. Word has length 63 [2021-11-19 05:05:44,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:44,935 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 325 transitions. [2021-11-19 05:05:44,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:05:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 325 transitions. [2021-11-19 05:05:44,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-19 05:05:44,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:44,936 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:44,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 05:05:45,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:45,157 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr11REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:45,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:45,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1285553232, now seen corresponding path program 1 times [2021-11-19 05:05:45,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:45,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30942835] [2021-11-19 05:05:45,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:05:45,159 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:45,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:45,160 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:45,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 05:05:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:05:45,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 05:05:45,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:45,889 INFO L354 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2021-11-19 05:05:45,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2021-11-19 05:05:45,927 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 05:05:45,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2021-11-19 05:05:46,498 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-19 05:05:46,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 63 [2021-11-19 05:05:46,511 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-19 05:05:46,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 51 [2021-11-19 05:05:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:46,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:48,900 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 57 treesize of output 55 [2021-11-19 05:05:49,237 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:49,238 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:49,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30942835] [2021-11-19 05:05:49,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30942835] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:05:49,238 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:05:49,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 05:05:49,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393821037] [2021-11-19 05:05:49,238 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:05:49,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:05:49,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:49,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:05:49,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:05:49,239 INFO L87 Difference]: Start difference. First operand 288 states and 325 transitions. Second operand has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:05:49,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:05:49,494 INFO L93 Difference]: Finished difference Result 291 states and 328 transitions. [2021-11-19 05:05:49,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:05:49,495 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2021-11-19 05:05:49,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:05:49,497 INFO L225 Difference]: With dead ends: 291 [2021-11-19 05:05:49,497 INFO L226 Difference]: Without dead ends: 291 [2021-11-19 05:05:49,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-19 05:05:49,498 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 7 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 123 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:05:49,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 2052 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 123 Unchecked, 0.1s Time] [2021-11-19 05:05:49,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-19 05:05:49,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2021-11-19 05:05:49,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 201 states have (on average 1.5174129353233832) internal successors, (305), 269 states have internal predecessors, (305), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:05:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 328 transitions. [2021-11-19 05:05:49,508 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 328 transitions. Word has length 63 [2021-11-19 05:05:49,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:05:49,508 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 328 transitions. [2021-11-19 05:05:49,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 05:05:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 328 transitions. [2021-11-19 05:05:49,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 05:05:49,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:05:49,510 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:05:49,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 05:05:49,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:05:49,730 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr14REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:05:49,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:05:49,731 INFO L85 PathProgramCache]: Analyzing trace with hash 307591097, now seen corresponding path program 1 times [2021-11-19 05:05:49,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:05:49,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566786660] [2021-11-19 05:05:49,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:05:49,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:05:49,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:05:49,744 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:05:49,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 05:05:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:05:50,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 05:05:50,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:05:50,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 05:05:50,501 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 26 treesize of output 22 [2021-11-19 05:05:50,682 INFO L354 Elim1Store]: treesize reduction 46, result has 20.7 percent of original size [2021-11-19 05:05:50,682 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 46 treesize of output 36 [2021-11-19 05:05:50,802 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 05:05:50,802 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 20 [2021-11-19 05:05:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:50,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:05:52,939 WARN L838 $PredicateComparison]: unable to prove that (forall ((main_~mem_track~0.base (_ BitVec 64))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse0 (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64)))) (select (select (store |c_#memory_$Pointer$.base| main_~mem_track~0.base (store (select |c_#memory_$Pointer$.base| main_~mem_track~0.base) (bvadd c_main_~mem_track~0.offset .cse0) |c_main_#t~mem125.base|)) c_main_~argv~0.base) (bvadd c_main_~argv~0.offset .cse0)))))))))))) (_ bv1 1)))) is different from false [2021-11-19 05:05:54,973 WARN L838 $PredicateComparison]: unable to prove that (forall ((main_~mem_track~0.base (_ BitVec 64))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse0 (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64)))) (let ((.cse1 (bvadd c_main_~argv~0.offset .cse0))) (select (select (store |c_#memory_$Pointer$.base| main_~mem_track~0.base (store (select |c_#memory_$Pointer$.base| main_~mem_track~0.base) (bvadd c_main_~mem_track~0.offset .cse0) (select (select |c_#memory_$Pointer$.base| c_main_~argv~0.base) .cse1))) c_main_~argv~0.base) .cse1))))))))))))))) (_ bv1 1)))) is different from false [2021-11-19 05:05:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:05:55,132 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:05:55,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566786660] [2021-11-19 05:05:55,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566786660] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:05:55,133 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:05:55,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2021-11-19 05:05:55,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236746732] [2021-11-19 05:05:55,133 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:05:55,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 05:05:55,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:05:55,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 05:05:55,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=65, Unknown=2, NotChecked=34, Total=132 [2021-11-19 05:05:55,134 INFO L87 Difference]: Start difference. First operand 291 states and 328 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:06:11,740 WARN L227 SmtUtils]: Spent 14.22s on a formula simplification. DAG size of input: 52 DAG size of output: 46 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 05:06:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:06:21,397 INFO L93 Difference]: Finished difference Result 289 states and 325 transitions. [2021-11-19 05:06:21,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:06:21,398 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 66 [2021-11-19 05:06:21,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:06:21,399 INFO L225 Difference]: With dead ends: 289 [2021-11-19 05:06:21,400 INFO L226 Difference]: Without dead ends: 289 [2021-11-19 05:06:21,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 120 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 28.8s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=5, NotChecked=46, Total=210 [2021-11-19 05:06:21,400 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 56 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 214 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-19 05:06:21,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 1608 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 355 Invalid, 0 Unknown, 214 Unchecked, 1.8s Time] [2021-11-19 05:06:21,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-19 05:06:21,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2021-11-19 05:06:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 201 states have (on average 1.5024875621890548) internal successors, (302), 267 states have internal predecessors, (302), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:06:21,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 325 transitions. [2021-11-19 05:06:21,409 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 325 transitions. Word has length 66 [2021-11-19 05:06:21,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:06:21,410 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 325 transitions. [2021-11-19 05:06:21,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:06:21,410 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 325 transitions. [2021-11-19 05:06:21,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 05:06:21,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:06:21,411 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:06:21,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 05:06:21,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:06:21,619 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr15REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:06:21,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:06:21,619 INFO L85 PathProgramCache]: Analyzing trace with hash 307591098, now seen corresponding path program 1 times [2021-11-19 05:06:21,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:06:21,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090623859] [2021-11-19 05:06:21,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:06:21,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:06:21,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:06:21,623 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:06:21,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 05:06:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:06:22,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 05:06:22,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:06:22,388 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 12 treesize of output 10 [2021-11-19 05:06:22,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 05:06:22,471 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 22 treesize of output 18 [2021-11-19 05:06:22,491 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 16 treesize of output 12 [2021-11-19 05:06:22,701 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-19 05:06:22,701 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 62 [2021-11-19 05:06:22,763 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-19 05:06:22,763 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 47 treesize of output 46 [2021-11-19 05:06:22,878 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 51 treesize of output 33 [2021-11-19 05:06:22,885 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 30 treesize of output 12 [2021-11-19 05:06:22,927 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:06:22,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:06:25,371 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|main_#t~mem125.offset| (_ BitVec 64)) (|main_#t~mem125.base| (_ BitVec 64)) (main_~mem_track~0.offset (_ BitVec 64))) (let ((.cse2 (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64)))) (let ((.cse0 (bvadd main_~mem_track~0.offset .cse2)) (.cse1 (bvadd c_main_~argv~0.offset .cse2))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| c_main_~mem_track~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~mem_track~0.base) .cse0 |main_#t~mem125.offset|)) c_main_~argv~0.base) .cse1) (_ bv11 64)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_main_~mem_track~0.base (store (select |c_#memory_$Pointer$.base| c_main_~mem_track~0.base) .cse0 |main_#t~mem125.base|)) c_main_~argv~0.base) .cse1)))))) (forall ((|main_#t~mem125.offset| (_ BitVec 64)) (main_~mem_track~0.offset (_ BitVec 64))) (let ((.cse3 (let ((.cse4 (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64)))) (select (select (store |c_#memory_$Pointer$.offset| c_main_~mem_track~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~mem_track~0.base) (bvadd main_~mem_track~0.offset .cse4) |main_#t~mem125.offset|)) c_main_~argv~0.base) (bvadd c_main_~argv~0.offset .cse4))))) (bvule (bvadd (_ bv10 64) .cse3) (bvadd .cse3 (_ bv11 64)))))) is different from false [2021-11-19 05:06:25,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 05:06:25,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 05:06:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:06:26,081 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:06:26,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090623859] [2021-11-19 05:06:26,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090623859] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:06:26,082 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:06:26,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 05:06:26,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641955293] [2021-11-19 05:06:26,082 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:06:26,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 05:06:26,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:06:26,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 05:06:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=66, Unknown=1, NotChecked=16, Total=110 [2021-11-19 05:06:26,083 INFO L87 Difference]: Start difference. First operand 289 states and 325 transitions. Second operand has 11 states, 10 states have (on average 3.3) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:06:32,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:06:32,055 INFO L93 Difference]: Finished difference Result 288 states and 324 transitions. [2021-11-19 05:06:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 05:06:32,058 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 66 [2021-11-19 05:06:32,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:06:32,060 INFO L225 Difference]: With dead ends: 288 [2021-11-19 05:06:32,060 INFO L226 Difference]: Without dead ends: 288 [2021-11-19 05:06:32,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=49, Invalid=110, Unknown=1, NotChecked=22, Total=182 [2021-11-19 05:06:32,061 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 58 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-19 05:06:32,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 1248 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 312 Invalid, 0 Unknown, 110 Unchecked, 3.3s Time] [2021-11-19 05:06:32,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-19 05:06:32,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2021-11-19 05:06:32,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 201 states have (on average 1.4975124378109452) internal successors, (301), 266 states have internal predecessors, (301), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:06:32,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 324 transitions. [2021-11-19 05:06:32,070 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 324 transitions. Word has length 66 [2021-11-19 05:06:32,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:06:32,071 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 324 transitions. [2021-11-19 05:06:32,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:06:32,071 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 324 transitions. [2021-11-19 05:06:32,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 05:06:32,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:06:32,072 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:06:32,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 05:06:32,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:06:32,293 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr18REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:06:32,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:06:32,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2013611364, now seen corresponding path program 1 times [2021-11-19 05:06:32,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:06:32,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611934173] [2021-11-19 05:06:32,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:06:32,294 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:06:32,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:06:32,295 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:06:32,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 05:06:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:06:32,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 05:06:32,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:06:32,938 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 12 treesize of output 10 [2021-11-19 05:06:33,041 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-19 05:06:33,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 30 [2021-11-19 05:06:33,183 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 30 treesize of output 26 [2021-11-19 05:06:33,478 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-19 05:06:33,479 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 53 treesize of output 43 [2021-11-19 05:06:33,853 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-19 05:06:33,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 47 [2021-11-19 05:06:34,035 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 62 treesize of output 35 [2021-11-19 05:06:34,205 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:06:34,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:06:40,708 WARN L838 $PredicateComparison]: unable to prove that (forall ((|main_#t~mem126.offset| (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse1 (bvadd c_main_~argv~0.offset (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64))))) (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_main_~argv~0.base) .cse1))) (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) (bvadd (_ bv10 64) |main_#t~mem126.offset|) v_DerPreprocessor_1))) c_main_~argv~0.base) .cse1))))))))) (_ bv1 1)))) is different from false [2021-11-19 05:06:42,757 WARN L838 $PredicateComparison]: unable to prove that (forall ((|main_#t~mem126.offset| (_ BitVec 64)) (|main_#t~mem125.base| (_ BitVec 64)) (main_~mem_track~0.offset (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse3 (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64)))) (let ((.cse2 (bvadd c_main_~argv~0.offset .cse3))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_main_~mem_track~0.base (store (select |c_#memory_$Pointer$.base| c_main_~mem_track~0.base) (bvadd main_~mem_track~0.offset .cse3) |main_#t~mem125.base|)))) (let ((.cse1 (select (select .cse0 c_main_~argv~0.base) .cse2))) (store .cse0 .cse1 (store (select .cse0 .cse1) (bvadd (_ bv10 64) |main_#t~mem126.offset|) v_DerPreprocessor_1)))) c_main_~argv~0.base) .cse2))))))))))))) is different from false [2021-11-19 05:08:10,972 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-11-19 05:08:10,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 50 [2021-11-19 05:08:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:08:11,079 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:08:11,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611934173] [2021-11-19 05:08:11,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611934173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:08:11,079 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:08:11,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 9] imperfect sequences [] total 15 [2021-11-19 05:08:11,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69393185] [2021-11-19 05:08:11,080 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:08:11,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 05:08:11,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:08:11,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 05:08:11,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=140, Unknown=4, NotChecked=50, Total=240 [2021-11-19 05:08:11,081 INFO L87 Difference]: Start difference. First operand 288 states and 324 transitions. Second operand has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:08:12,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:08:12,712 INFO L93 Difference]: Finished difference Result 296 states and 334 transitions. [2021-11-19 05:08:12,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:08:12,713 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2021-11-19 05:08:12,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:08:12,715 INFO L225 Difference]: With dead ends: 296 [2021-11-19 05:08:12,715 INFO L226 Difference]: Without dead ends: 296 [2021-11-19 05:08:12,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=63, Invalid=181, Unknown=4, NotChecked=58, Total=306 [2021-11-19 05:08:12,716 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 7 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 460 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:08:12,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 2046 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 155 Invalid, 0 Unknown, 460 Unchecked, 1.0s Time] [2021-11-19 05:08:12,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-11-19 05:08:12,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 295. [2021-11-19 05:08:12,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 208 states have (on average 1.4903846153846154) internal successors, (310), 273 states have internal predecessors, (310), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 05:08:12,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 333 transitions. [2021-11-19 05:08:12,725 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 333 transitions. Word has length 70 [2021-11-19 05:08:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:08:12,726 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 333 transitions. [2021-11-19 05:08:12,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 05:08:12,726 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 333 transitions. [2021-11-19 05:08:12,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 05:08:12,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:08:12,727 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:08:12,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 05:08:12,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:08:12,943 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr19REQUIRES_VIOLATION === [__mainErr0REQUIRES_VIOLATION, __mainErr1REQUIRES_VIOLATION, __mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, __mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 132 more)] === [2021-11-19 05:08:12,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:08:12,943 INFO L85 PathProgramCache]: Analyzing trace with hash 2013611365, now seen corresponding path program 1 times [2021-11-19 05:08:12,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:08:12,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376847651] [2021-11-19 05:08:12,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:08:12,944 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:08:12,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:08:12,945 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:08:12,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84a0e456-2ca5-4bc8-8de6-5a73f78bea97/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 05:08:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:08:13,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 05:08:13,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:08:13,638 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 12 treesize of output 10 [2021-11-19 05:08:13,726 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 05:08:13,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2021-11-19 05:08:13,745 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 [2021-11-19 05:08:13,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-19 05:08:13,825 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 26 treesize of output 22 [2021-11-19 05:08:14,055 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-19 05:08:14,056 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 76 treesize of output 66 [2021-11-19 05:08:14,103 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-19 05:08:14,104 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 60 treesize of output 59 [2021-11-19 05:08:14,413 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-19 05:08:14,413 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 132 treesize of output 71 [2021-11-19 05:08:14,456 INFO L354 Elim1Store]: treesize reduction 77, result has 13.5 percent of original size [2021-11-19 05:08:14,457 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 86 treesize of output 43 [2021-11-19 05:08:14,650 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 64 treesize of output 46 [2021-11-19 05:08:14,655 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 43 treesize of output 16 [2021-11-19 05:08:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-19 05:08:14,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:08:17,924 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|main_#t~mem126.offset| (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64))) (let ((.cse0 ((_ sign_extend 32) (_ bv0 32))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_main_#t~mem126.base| (store (select |c_#memory_$Pointer$.offset| |c_main_#t~mem126.base|) (bvadd (_ bv10 64) |main_#t~mem126.offset|) v_DerPreprocessor_3)) c_main_~argv~0.base) (bvadd c_main_~argv~0.offset (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64)))))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 (_ bv1 64) .cse1)))) (forall ((|main_#t~mem126.offset| (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64))) (let ((.cse2 (bvadd (_ bv10 64) |main_#t~mem126.offset|)) (.cse3 (bvadd c_main_~argv~0.offset (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64))))) (bvule (bvadd ((_ sign_extend 32) (_ bv0 32)) (_ bv1 64) (select (select (store |c_#memory_$Pointer$.offset| |c_main_#t~mem126.base| (store (select |c_#memory_$Pointer$.offset| |c_main_#t~mem126.base|) .cse2 v_DerPreprocessor_3)) c_main_~argv~0.base) .cse3)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_main_#t~mem126.base| (store (select |c_#memory_$Pointer$.base| |c_main_#t~mem126.base|) .cse2 v_DerPreprocessor_2)) c_main_~argv~0.base) .cse3)))))) is different from false [2021-11-19 05:08:20,053 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|main_#t~mem126.offset| (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64))) (let ((.cse2 (bvadd c_main_~argv~0.offset (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64))))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_main_~argv~0.base) .cse2)) (.cse1 (bvadd (_ bv10 64) |main_#t~mem126.offset|))) (bvule (bvadd ((_ sign_extend 32) (_ bv0 32)) (select (select (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) .cse1 v_DerPreprocessor_3)) c_main_~argv~0.base) .cse2) (_ bv1 64)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) .cse1 v_DerPreprocessor_2)) c_main_~argv~0.base) .cse2)))))) (forall ((|main_#t~mem126.offset| (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64))) (let ((.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse4 (let ((.cse6 (bvadd c_main_~argv~0.offset (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64))))) (select (select (let ((.cse5 (select (select |c_#memory_$Pointer$.base| c_main_~argv~0.base) .cse6))) (store |c_#memory_$Pointer$.offset| .cse5 (store (select |c_#memory_$Pointer$.offset| .cse5) (bvadd (_ bv10 64) |main_#t~mem126.offset|) v_DerPreprocessor_3))) c_main_~argv~0.base) .cse6)))) (bvule (bvadd .cse3 .cse4) (bvadd .cse3 .cse4 (_ bv1 64)))))) is different from false [2021-11-19 05:08:22,296 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|main_#t~mem125.offset| (_ BitVec 64)) (|main_#t~mem126.offset| (_ BitVec 64)) (|main_#t~mem125.base| (_ BitVec 64)) (main_~mem_track~0.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64))) (let ((.cse0 ((_ sign_extend 32) (_ bv0 32))) (.cse1 (let ((.cse6 (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64)))) (let ((.cse5 (bvadd c_main_~argv~0.offset .cse6))) (select (select (let ((.cse4 (bvadd main_~mem_track~0.offset .cse6))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| c_main_~mem_track~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~mem_track~0.base) .cse4 |main_#t~mem125.offset|))) (.cse3 (select (select (store |c_#memory_$Pointer$.base| c_main_~mem_track~0.base (store (select |c_#memory_$Pointer$.base| c_main_~mem_track~0.base) .cse4 |main_#t~mem125.base|)) c_main_~argv~0.base) .cse5))) (store .cse2 .cse3 (store (select .cse2 .cse3) (bvadd (_ bv10 64) |main_#t~mem126.offset|) v_DerPreprocessor_3)))) c_main_~argv~0.base) .cse5))))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 (_ bv1 64) .cse1)))) (forall ((|main_#t~mem125.offset| (_ BitVec 64)) (|main_#t~mem126.offset| (_ BitVec 64)) (|main_#t~mem125.base| (_ BitVec 64)) (main_~mem_track~0.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64))) (let ((.cse13 (bvmul ((_ sign_extend 32) c_main_~i~4) (_ bv8 64)))) (let ((.cse10 (bvadd main_~mem_track~0.offset .cse13))) (let ((.cse12 (store |c_#memory_$Pointer$.base| c_main_~mem_track~0.base (store (select |c_#memory_$Pointer$.base| c_main_~mem_track~0.base) .cse10 |main_#t~mem125.base|))) (.cse11 (bvadd c_main_~argv~0.offset .cse13))) (let ((.cse8 (select (select .cse12 c_main_~argv~0.base) .cse11)) (.cse9 (bvadd (_ bv10 64) |main_#t~mem126.offset|))) (bvule (bvadd ((_ sign_extend 32) (_ bv0 32)) (_ bv1 64) (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| c_main_~mem_track~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~mem_track~0.base) .cse10 |main_#t~mem125.offset|)))) (store .cse7 .cse8 (store (select .cse7 .cse8) .cse9 v_DerPreprocessor_3))) c_main_~argv~0.base) .cse11)) (select |c_#length| (select (select (store .cse12 .cse8 (store (select .cse12 .cse8) .cse9 v_DerPreprocessor_2)) c_main_~argv~0.base) .cse11))))))))) is different from false