./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/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_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 65aca230ed2b7a8b5f7f2ccd484c93b0425fe4f5fb1895001f199a0c2754f5f4 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:19:05,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:19:05,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:19:05,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:19:05,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:19:05,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:19:05,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:19:05,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:19:05,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:19:05,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:19:05,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:19:05,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:19:05,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:19:05,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:19:05,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:19:05,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:19:05,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:19:05,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:19:05,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:19:05,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:19:05,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:19:05,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:19:05,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:19:05,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:19:05,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:19:05,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:19:05,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:19:05,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:19:05,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:19:05,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:19:05,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:19:05,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:19:05,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:19:05,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:19:05,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:19:05,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:19:05,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:19:05,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:19:05,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:19:05,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:19:05,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:19:05,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-12-06 20:19:05,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:19:05,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:19:05,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:19:05,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:19:05,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:19:05,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:19:05,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:19:05,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:19:05,910 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:19:05,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:19:05,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 20:19:05,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:19:05,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:19:05,910 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 20:19:05,911 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 20:19:05,911 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 20:19:05,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:19:05,911 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 20:19:05,911 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:19:05,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:19:05,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:19:05,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:19:05,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:19:05,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:19:05,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:19:05,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:19:05,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:19:05,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:19:05,912 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_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65aca230ed2b7a8b5f7f2ccd484c93b0425fe4f5fb1895001f199a0c2754f5f4 [2021-12-06 20:19:06,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:19:06,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:19:06,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:19:06,119 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:19:06,119 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:19:06,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/busybox-1.22.0/basename-1.i [2021-12-06 20:19:06,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/data/b13601877/709674919c1d4952ac9542d5e0c22b6b/FLAG5d0baffa1 [2021-12-06 20:19:06,620 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:19:06,621 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/sv-benchmarks/c/busybox-1.22.0/basename-1.i [2021-12-06 20:19:06,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/data/b13601877/709674919c1d4952ac9542d5e0c22b6b/FLAG5d0baffa1 [2021-12-06 20:19:07,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/data/b13601877/709674919c1d4952ac9542d5e0c22b6b [2021-12-06 20:19:07,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:19:07,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:19:07,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:19:07,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:19:07,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:19:07,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:19:07" (1/1) ... [2021-12-06 20:19:07,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760d94b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:07, skipping insertion in model container [2021-12-06 20:19:07,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:19:07" (1/1) ... [2021-12-06 20:19:07,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:19:07,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:19:07,602 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_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/sv-benchmarks/c/busybox-1.22.0/basename-1.i[58057,58070] [2021-12-06 20:19:07,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:19:07,646 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-12-06 20:19:07,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4fc5c5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:07, skipping insertion in model container [2021-12-06 20:19:07,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:19:07,647 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-06 20:19:07,649 INFO L158 Benchmark]: Toolchain (without parser) took 471.45ms. Allocated memory is still 130.0MB. Free memory was 89.0MB in the beginning and 94.9MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 20:19:07,649 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory was 108.5MB in the beginning and 108.4MB in the end (delta: 140.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:19:07,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.96ms. Allocated memory is still 130.0MB. Free memory was 88.8MB in the beginning and 94.9MB in the end (delta: -6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 20:19:07,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory was 108.5MB in the beginning and 108.4MB in the end (delta: 140.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.96ms. Allocated memory is still 130.0MB. Free memory was 88.8MB in the beginning and 94.9MB in the end (delta: -6.1MB). Peak memory consumption was 8.4MB. 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_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/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_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 65aca230ed2b7a8b5f7f2ccd484c93b0425fe4f5fb1895001f199a0c2754f5f4 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:19:09,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:19:09,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:19:09,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:19:09,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:19:09,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:19:09,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:19:09,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:19:09,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:19:09,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:19:09,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:19:09,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:19:09,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:19:09,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:19:09,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:19:09,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:19:09,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:19:09,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:19:09,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:19:09,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:19:09,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:19:09,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:19:09,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:19:09,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:19:09,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:19:09,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:19:09,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:19:09,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:19:09,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:19:09,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:19:09,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:19:09,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:19:09,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:19:09,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:19:09,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:19:09,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:19:09,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:19:09,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:19:09,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:19:09,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:19:09,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:19:09,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2021-12-06 20:19:09,085 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:19:09,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:19:09,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:19:09,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:19:09,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:19:09,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:19:09,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:19:09,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:19:09,087 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:19:09,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:19:09,087 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 20:19:09,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:19:09,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:19:09,088 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 20:19:09,088 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 20:19:09,088 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 20:19:09,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:19:09,088 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 20:19:09,088 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 20:19:09,088 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 20:19:09,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:19:09,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:19:09,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:19:09,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:19:09,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:19:09,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:19:09,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:19:09,089 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 20:19:09,089 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 20:19:09,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:19:09,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 20:19:09,090 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_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65aca230ed2b7a8b5f7f2ccd484c93b0425fe4f5fb1895001f199a0c2754f5f4 [2021-12-06 20:19:09,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:19:09,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:19:09,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:19:09,331 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:19:09,331 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:19:09,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/busybox-1.22.0/basename-1.i [2021-12-06 20:19:09,375 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/data/cb69753b3/aaab46a30d4745149f701891cd38a0f9/FLAG761eb30a5 [2021-12-06 20:19:09,883 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:19:09,883 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/sv-benchmarks/c/busybox-1.22.0/basename-1.i [2021-12-06 20:19:09,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/data/cb69753b3/aaab46a30d4745149f701891cd38a0f9/FLAG761eb30a5 [2021-12-06 20:19:10,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/data/cb69753b3/aaab46a30d4745149f701891cd38a0f9 [2021-12-06 20:19:10,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:19:10,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:19:10,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:19:10,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:19:10,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:19:10,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:19:10" (1/1) ... [2021-12-06 20:19:10,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129beda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:10, skipping insertion in model container [2021-12-06 20:19:10,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:19:10" (1/1) ... [2021-12-06 20:19:10,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:19:10,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:19:10,785 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_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/sv-benchmarks/c/busybox-1.22.0/basename-1.i[58057,58070] [2021-12-06 20:19:10,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:19:10,854 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 20:19:10,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:19:10,918 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_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/sv-benchmarks/c/busybox-1.22.0/basename-1.i[58057,58070] [2021-12-06 20:19:10,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:19:10,960 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:19:11,008 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_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/sv-benchmarks/c/busybox-1.22.0/basename-1.i[58057,58070] [2021-12-06 20:19:11,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:19:11,106 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:19:11,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11 WrapperNode [2021-12-06 20:19:11,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:19:11,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:19:11,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:19:11,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:19:11,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (1/1) ... [2021-12-06 20:19:11,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (1/1) ... [2021-12-06 20:19:11,182 INFO L137 Inliner]: procedures = 352, calls = 112, calls flagged for inlining = 11, calls inlined = 10, statements flattened = 383 [2021-12-06 20:19:11,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:19:11,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:19:11,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:19:11,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:19:11,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (1/1) ... [2021-12-06 20:19:11,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (1/1) ... [2021-12-06 20:19:11,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (1/1) ... [2021-12-06 20:19:11,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (1/1) ... [2021-12-06 20:19:11,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (1/1) ... [2021-12-06 20:19:11,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (1/1) ... [2021-12-06 20:19:11,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (1/1) ... [2021-12-06 20:19:11,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:19:11,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:19:11,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:19:11,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:19:11,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (1/1) ... [2021-12-06 20:19:11,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:19:11,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:19:11,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:19:11,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:19:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-06 20:19:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 20:19:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 20:19:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 20:19:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 20:19:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-06 20:19:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:19:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 20:19:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 20:19:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-12-06 20:19:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:19:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 20:19:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:19:11,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:19:11,549 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:19:11,551 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:19:12,519 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:19:12,525 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:19:12,525 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-12-06 20:19:12,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:19:12 BoogieIcfgContainer [2021-12-06 20:19:12,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:19:12,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:19:12,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:19:12,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:19:12,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:19:10" (1/3) ... [2021-12-06 20:19:12,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab87564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:19:12, skipping insertion in model container [2021-12-06 20:19:12,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:19:11" (2/3) ... [2021-12-06 20:19:12,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab87564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:19:12, skipping insertion in model container [2021-12-06 20:19:12,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:19:12" (3/3) ... [2021-12-06 20:19:12,532 INFO L111 eAbstractionObserver]: Analyzing ICFG basename-1.i [2021-12-06 20:19:12,536 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:19:12,536 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 92 error locations. [2021-12-06 20:19:12,567 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:19:12,572 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:19:12,572 INFO L340 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2021-12-06 20:19:12,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 243 states, 147 states have (on average 1.9319727891156462) internal successors, (284), 239 states have internal predecessors, (284), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:12,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-12-06 20:19:12,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:12,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-12-06 20:19:12,590 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:12,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:12,594 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-12-06 20:19:12,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:12,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968995293] [2021-12-06 20:19:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:12,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:12,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:12,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:12,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 20:19:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:12,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:19:12,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:12,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 20:19:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:19:12,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:12,779 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:12,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968995293] [2021-12-06 20:19:12,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968995293] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:12,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:12,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:19:12,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963369939] [2021-12-06 20:19:12,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:12,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:19:12,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:12,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:19:12,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:19:12,805 INFO L87 Difference]: Start difference. First operand has 243 states, 147 states have (on average 1.9319727891156462) internal successors, (284), 239 states have internal predecessors, (284), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:19:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:13,207 INFO L93 Difference]: Finished difference Result 251 states and 285 transitions. [2021-12-06 20:19:13,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:19:13,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-12-06 20:19:13,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:13,216 INFO L225 Difference]: With dead ends: 251 [2021-12-06 20:19:13,216 INFO L226 Difference]: Without dead ends: 249 [2021-12-06 20:19:13,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:19:13,220 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 239 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:13,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 207 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 20:19:13,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-12-06 20:19:13,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 233. [2021-12-06 20:19:13,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 142 states have (on average 1.8450704225352113) internal successors, (262), 229 states have internal predecessors, (262), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:13,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 266 transitions. [2021-12-06 20:19:13,265 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 266 transitions. Word has length 3 [2021-12-06 20:19:13,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:13,266 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 266 transitions. [2021-12-06 20:19:13,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:19:13,266 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 266 transitions. [2021-12-06 20:19:13,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-12-06 20:19:13,266 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:13,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-12-06 20:19:13,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:19:13,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:13,468 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:13,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:13,472 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-06 20:19:13,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:13,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410659067] [2021-12-06 20:19:13,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:13,477 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:13,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:13,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:13,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 20:19:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:13,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:19:13,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:13,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 20:19:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:19:13,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:13,617 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:13,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410659067] [2021-12-06 20:19:13,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410659067] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:13,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:13,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:19:13,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216114181] [2021-12-06 20:19:13,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:13,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:19:13,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:13,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:19:13,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:19:13,620 INFO L87 Difference]: Start difference. First operand 233 states and 266 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:19:14,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:14,216 INFO L93 Difference]: Finished difference Result 232 states and 265 transitions. [2021-12-06 20:19:14,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:19:14,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-12-06 20:19:14,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:14,220 INFO L225 Difference]: With dead ends: 232 [2021-12-06 20:19:14,220 INFO L226 Difference]: Without dead ends: 232 [2021-12-06 20:19:14,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:19:14,221 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 9 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:14,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 432 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 20:19:14,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-12-06 20:19:14,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2021-12-06 20:19:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 142 states have (on average 1.8380281690140845) internal successors, (261), 228 states have internal predecessors, (261), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 265 transitions. [2021-12-06 20:19:14,237 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 265 transitions. Word has length 3 [2021-12-06 20:19:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:14,237 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 265 transitions. [2021-12-06 20:19:14,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:19:14,238 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 265 transitions. [2021-12-06 20:19:14,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-06 20:19:14,238 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:14,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-06 20:19:14,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 20:19:14,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:14,440 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:14,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:14,442 INFO L85 PathProgramCache]: Analyzing trace with hash 889446313, now seen corresponding path program 1 times [2021-12-06 20:19:14,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:14,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4877138] [2021-12-06 20:19:14,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:14,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:14,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:14,447 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:14,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 20:19:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:14,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:19:14,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:14,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 20:19:14,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:19:14,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:14,627 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:14,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4877138] [2021-12-06 20:19:14,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4877138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:14,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:14,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:19:14,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032653471] [2021-12-06 20:19:14,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:14,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:19:14,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:14,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:19:14,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:19:14,630 INFO L87 Difference]: Start difference. First operand 232 states and 265 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:19:15,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:15,213 INFO L93 Difference]: Finished difference Result 236 states and 269 transitions. [2021-12-06 20:19:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:19:15,215 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-06 20:19:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:15,216 INFO L225 Difference]: With dead ends: 236 [2021-12-06 20:19:15,216 INFO L226 Difference]: Without dead ends: 236 [2021-12-06 20:19:15,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:19:15,217 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 13 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:15,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 431 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 20:19:15,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-12-06 20:19:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2021-12-06 20:19:15,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 144 states have (on average 1.8263888888888888) internal successors, (263), 230 states have internal predecessors, (263), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:15,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 267 transitions. [2021-12-06 20:19:15,229 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 267 transitions. Word has length 6 [2021-12-06 20:19:15,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:15,230 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 267 transitions. [2021-12-06 20:19:15,230 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:19:15,230 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 267 transitions. [2021-12-06 20:19:15,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-06 20:19:15,230 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:15,231 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:19:15,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 20:19:15,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:15,432 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:15,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:15,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1261842348, now seen corresponding path program 1 times [2021-12-06 20:19:15,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:15,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256941445] [2021-12-06 20:19:15,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:15,437 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:15,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:15,440 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:15,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 20:19:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:15,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:19:15,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:15,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 20:19:15,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:19:15,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:19:16,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:19:16,867 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:16,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256941445] [2021-12-06 20:19:16,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256941445] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:19:16,868 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:19:16,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-12-06 20:19:16,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307535492] [2021-12-06 20:19:16,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:19:16,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:19:16,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:16,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:19:16,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:19:16,869 INFO L87 Difference]: Start difference. First operand 234 states and 267 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:19:21,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:21,135 INFO L93 Difference]: Finished difference Result 240 states and 273 transitions. [2021-12-06 20:19:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:19:21,137 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-06 20:19:21,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:21,138 INFO L225 Difference]: With dead ends: 240 [2021-12-06 20:19:21,138 INFO L226 Difference]: Without dead ends: 240 [2021-12-06 20:19:21,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:19:21,140 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 19 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:21,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 1120 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-06 20:19:21,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-12-06 20:19:21,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-12-06 20:19:21,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 151 states have (on average 1.781456953642384) internal successors, (269), 236 states have internal predecessors, (269), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:21,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 273 transitions. [2021-12-06 20:19:21,149 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 273 transitions. Word has length 10 [2021-12-06 20:19:21,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:21,150 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 273 transitions. [2021-12-06 20:19:21,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:19:21,150 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 273 transitions. [2021-12-06 20:19:21,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 20:19:21,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:21,151 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:19:21,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-06 20:19:21,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:21,353 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:21,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:21,355 INFO L85 PathProgramCache]: Analyzing trace with hash -955562967, now seen corresponding path program 1 times [2021-12-06 20:19:21,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:21,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602816200] [2021-12-06 20:19:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:21,360 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:21,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:21,363 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:21,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 20:19:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:21,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:19:21,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:21,541 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:19:21,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:19:21,619 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:19:21,619 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:21,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602816200] [2021-12-06 20:19:21,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602816200] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:19:21,619 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:19:21,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-12-06 20:19:21,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079632669] [2021-12-06 20:19:21,619 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:19:21,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 20:19:21,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:21,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 20:19:21,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:19:21,621 INFO L87 Difference]: Start difference. First operand 240 states and 273 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 20:19:21,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:21,794 INFO L93 Difference]: Finished difference Result 260 states and 293 transitions. [2021-12-06 20:19:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 20:19:21,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2021-12-06 20:19:21,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:21,796 INFO L225 Difference]: With dead ends: 260 [2021-12-06 20:19:21,796 INFO L226 Difference]: Without dead ends: 260 [2021-12-06 20:19:21,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:19:21,797 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 24 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:21,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 1564 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:19:21,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-12-06 20:19:21,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2021-12-06 20:19:21,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 171 states have (on average 1.6900584795321638) internal successors, (289), 256 states have internal predecessors, (289), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:21,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 293 transitions. [2021-12-06 20:19:21,802 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 293 transitions. Word has length 25 [2021-12-06 20:19:21,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:21,803 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 293 transitions. [2021-12-06 20:19:21,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 20:19:21,803 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 293 transitions. [2021-12-06 20:19:21,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 20:19:21,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:21,804 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:19:21,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 20:19:22,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:22,004 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:22,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:22,005 INFO L85 PathProgramCache]: Analyzing trace with hash -167681350, now seen corresponding path program 2 times [2021-12-06 20:19:22,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:22,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655054847] [2021-12-06 20:19:22,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:19:22,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:22,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:22,006 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:22,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 20:19:22,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 20:19:22,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:19:22,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:19:22,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:22,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:19:22,178 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-06 20:19:22,178 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 [2021-12-06 20:19:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-06 20:19:22,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:22,210 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:22,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655054847] [2021-12-06 20:19:22,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655054847] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:22,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:22,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:19:22,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846167509] [2021-12-06 20:19:22,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:22,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:19:22,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:22,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:19:22,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:19:22,211 INFO L87 Difference]: Start difference. First operand 260 states and 293 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:22,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:22,591 INFO L93 Difference]: Finished difference Result 271 states and 305 transitions. [2021-12-06 20:19:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:19:22,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-12-06 20:19:22,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:22,593 INFO L225 Difference]: With dead ends: 271 [2021-12-06 20:19:22,593 INFO L226 Difference]: Without dead ends: 271 [2021-12-06 20:19:22,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:19:22,595 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 224 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:22,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 210 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 20:19:22,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-12-06 20:19:22,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 255. [2021-12-06 20:19:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 171 states have (on average 1.6608187134502923) internal successors, (284), 251 states have internal predecessors, (284), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:22,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 288 transitions. [2021-12-06 20:19:22,603 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 288 transitions. Word has length 45 [2021-12-06 20:19:22,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:22,604 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 288 transitions. [2021-12-06 20:19:22,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 288 transitions. [2021-12-06 20:19:22,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 20:19:22,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:22,606 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:19:22,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 20:19:22,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:22,808 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:22,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:22,809 INFO L85 PathProgramCache]: Analyzing trace with hash -167681349, now seen corresponding path program 1 times [2021-12-06 20:19:22,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:22,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434918827] [2021-12-06 20:19:22,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:22,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:22,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:22,815 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:22,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 20:19:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:23,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 20:19:23,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:23,182 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:19:23,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:19:23,402 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:19:23,402 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:23,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434918827] [2021-12-06 20:19:23,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434918827] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:19:23,403 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:19:23,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-12-06 20:19:23,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292712369] [2021-12-06 20:19:23,403 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:19:23,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-06 20:19:23,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:23,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-06 20:19:23,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-12-06 20:19:23,405 INFO L87 Difference]: Start difference. First operand 255 states and 288 transitions. Second operand has 20 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 20:19:23,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:23,775 INFO L93 Difference]: Finished difference Result 263 states and 296 transitions. [2021-12-06 20:19:23,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 20:19:23,775 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2021-12-06 20:19:23,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:23,777 INFO L225 Difference]: With dead ends: 263 [2021-12-06 20:19:23,777 INFO L226 Difference]: Without dead ends: 263 [2021-12-06 20:19:23,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-12-06 20:19:23,778 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 33 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:23,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 2862 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 20:19:23,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-12-06 20:19:23,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2021-12-06 20:19:23,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 179 states have (on average 1.6312849162011174) internal successors, (292), 259 states have internal predecessors, (292), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:23,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 296 transitions. [2021-12-06 20:19:23,784 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 296 transitions. Word has length 45 [2021-12-06 20:19:23,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:23,784 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 296 transitions. [2021-12-06 20:19:23,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 20:19:23,784 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 296 transitions. [2021-12-06 20:19:23,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 20:19:23,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:23,785 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:19:23,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 20:19:23,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:23,986 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:23,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:23,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1953485173, now seen corresponding path program 2 times [2021-12-06 20:19:23,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:23,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891102206] [2021-12-06 20:19:23,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:19:23,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:23,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:23,988 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:23,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 20:19:24,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 20:19:24,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:19:24,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:19:24,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:24,191 INFO L354 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2021-12-06 20:19:24,191 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 [2021-12-06 20:19:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:24,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:24,278 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:24,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891102206] [2021-12-06 20:19:24,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891102206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:24,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:24,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:19:24,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554092613] [2021-12-06 20:19:24,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:24,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:19:24,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:24,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:19:24,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:19:24,280 INFO L87 Difference]: Start difference. First operand 263 states and 296 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:25,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:25,850 INFO L93 Difference]: Finished difference Result 445 states and 509 transitions. [2021-12-06 20:19:25,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:19:25,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-12-06 20:19:25,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:25,857 INFO L225 Difference]: With dead ends: 445 [2021-12-06 20:19:25,857 INFO L226 Difference]: Without dead ends: 445 [2021-12-06 20:19:25,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:19:25,858 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 667 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:25,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [669 Valid, 722 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-06 20:19:25,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2021-12-06 20:19:25,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 369. [2021-12-06 20:19:25,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 285 states have (on average 1.7228070175438597) internal successors, (491), 364 states have internal predecessors, (491), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 20:19:25,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 497 transitions. [2021-12-06 20:19:25,866 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 497 transitions. Word has length 53 [2021-12-06 20:19:25,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:25,866 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 497 transitions. [2021-12-06 20:19:25,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:25,866 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 497 transitions. [2021-12-06 20:19:25,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 20:19:25,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:25,867 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] [2021-12-06 20:19:25,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 20:19:26,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:26,069 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:26,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:26,071 INFO L85 PathProgramCache]: Analyzing trace with hash -530101490, now seen corresponding path program 1 times [2021-12-06 20:19:26,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:26,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797353253] [2021-12-06 20:19:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:26,074 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:26,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:26,077 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:26,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 20:19:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:26,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 20:19:26,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:26,525 INFO L354 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2021-12-06 20:19:26,526 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 [2021-12-06 20:19:26,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:19:26,866 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-12-06 20:19:26,866 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 27 treesize of output 36 [2021-12-06 20:19:26,884 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 20:19:26,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-12-06 20:19:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:27,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:27,017 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:27,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797353253] [2021-12-06 20:19:27,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797353253] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:27,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:27,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:19:27,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117938343] [2021-12-06 20:19:27,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:27,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 20:19:27,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:27,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 20:19:27,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:19:27,018 INFO L87 Difference]: Start difference. First operand 369 states and 497 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:27,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:27,122 INFO L93 Difference]: Finished difference Result 370 states and 498 transitions. [2021-12-06 20:19:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:19:27,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2021-12-06 20:19:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:27,124 INFO L225 Difference]: With dead ends: 370 [2021-12-06 20:19:27,124 INFO L226 Difference]: Without dead ends: 370 [2021-12-06 20:19:27,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:19:27,125 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 5 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 220 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:27,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 1279 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 220 Unchecked, 0.0s Time] [2021-12-06 20:19:27,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-12-06 20:19:27,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-12-06 20:19:27,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 286 states have (on average 1.7202797202797202) internal successors, (492), 365 states have internal predecessors, (492), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 20:19:27,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 498 transitions. [2021-12-06 20:19:27,133 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 498 transitions. Word has length 56 [2021-12-06 20:19:27,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:27,133 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 498 transitions. [2021-12-06 20:19:27,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:27,133 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 498 transitions. [2021-12-06 20:19:27,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 20:19:27,134 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:27,134 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] [2021-12-06 20:19:27,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 20:19:27,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:27,335 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:27,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:27,336 INFO L85 PathProgramCache]: Analyzing trace with hash 746722395, now seen corresponding path program 1 times [2021-12-06 20:19:27,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:27,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501025179] [2021-12-06 20:19:27,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:27,338 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:27,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:27,340 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:27,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 20:19:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:27,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:19:27,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:27,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:27,707 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:27,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501025179] [2021-12-06 20:19:27,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501025179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:27,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:27,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:19:27,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485811276] [2021-12-06 20:19:27,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:27,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:19:27,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:27,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:19:27,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:19:27,708 INFO L87 Difference]: Start difference. First operand 370 states and 498 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:28,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:28,207 INFO L93 Difference]: Finished difference Result 387 states and 518 transitions. [2021-12-06 20:19:28,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:19:28,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-12-06 20:19:28,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:28,210 INFO L225 Difference]: With dead ends: 387 [2021-12-06 20:19:28,210 INFO L226 Difference]: Without dead ends: 387 [2021-12-06 20:19:28,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:19:28,210 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 394 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:28,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 244 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 20:19:28,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-12-06 20:19:28,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 363. [2021-12-06 20:19:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 286 states have (on average 1.6713286713286712) internal successors, (478), 358 states have internal predecessors, (478), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 20:19:28,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 484 transitions. [2021-12-06 20:19:28,218 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 484 transitions. Word has length 57 [2021-12-06 20:19:28,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:28,218 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 484 transitions. [2021-12-06 20:19:28,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 484 transitions. [2021-12-06 20:19:28,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 20:19:28,219 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:28,219 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] [2021-12-06 20:19:28,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-06 20:19:28,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:28,421 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:28,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:28,422 INFO L85 PathProgramCache]: Analyzing trace with hash 746722396, now seen corresponding path program 1 times [2021-12-06 20:19:28,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:28,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022058913] [2021-12-06 20:19:28,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:28,425 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:28,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:28,428 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:28,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 20:19:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:28,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:19:28,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:28,785 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:28,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:28,786 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:28,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022058913] [2021-12-06 20:19:28,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022058913] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:28,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:28,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:19:28,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844246705] [2021-12-06 20:19:28,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:28,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:19:28,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:28,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:19:28,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:19:28,787 INFO L87 Difference]: Start difference. First operand 363 states and 484 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:29,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:29,104 INFO L93 Difference]: Finished difference Result 279 states and 313 transitions. [2021-12-06 20:19:29,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:19:29,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-12-06 20:19:29,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:29,106 INFO L225 Difference]: With dead ends: 279 [2021-12-06 20:19:29,106 INFO L226 Difference]: Without dead ends: 279 [2021-12-06 20:19:29,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:19:29,106 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 258 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:29,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 924 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:19:29,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-12-06 20:19:29,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 257. [2021-12-06 20:19:29,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 181 states have (on average 1.580110497237569) internal successors, (286), 253 states have internal predecessors, (286), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:29,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 290 transitions. [2021-12-06 20:19:29,112 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 290 transitions. Word has length 57 [2021-12-06 20:19:29,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:29,112 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 290 transitions. [2021-12-06 20:19:29,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:29,112 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 290 transitions. [2021-12-06 20:19:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 20:19:29,113 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:29,113 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] [2021-12-06 20:19:29,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-06 20:19:29,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:29,314 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:29,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:29,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1673575759, now seen corresponding path program 1 times [2021-12-06 20:19:29,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:29,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813379449] [2021-12-06 20:19:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:29,318 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:29,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:29,319 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:29,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 20:19:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:29,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:19:29,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:29,616 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:29,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:29,616 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:29,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813379449] [2021-12-06 20:19:29,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813379449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:29,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:29,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:19:29,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875604960] [2021-12-06 20:19:29,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:29,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:19:29,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:29,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:19:29,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:19:29,618 INFO L87 Difference]: Start difference. First operand 257 states and 290 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:30,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:30,446 INFO L93 Difference]: Finished difference Result 275 states and 309 transitions. [2021-12-06 20:19:30,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:19:30,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2021-12-06 20:19:30,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:30,448 INFO L225 Difference]: With dead ends: 275 [2021-12-06 20:19:30,448 INFO L226 Difference]: Without dead ends: 275 [2021-12-06 20:19:30,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:19:30,449 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 254 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:30,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 624 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 20:19:30,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-12-06 20:19:30,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 268. [2021-12-06 20:19:30,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 193 states have (on average 1.5751295336787565) internal successors, (304), 264 states have internal predecessors, (304), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:30,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 308 transitions. [2021-12-06 20:19:30,454 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 308 transitions. Word has length 58 [2021-12-06 20:19:30,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:30,454 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 308 transitions. [2021-12-06 20:19:30,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 308 transitions. [2021-12-06 20:19:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 20:19:30,455 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:30,455 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] [2021-12-06 20:19:30,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-12-06 20:19:30,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:30,656 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:30,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:30,657 INFO L85 PathProgramCache]: Analyzing trace with hash 341240963, now seen corresponding path program 1 times [2021-12-06 20:19:30,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:30,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400141698] [2021-12-06 20:19:30,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:30,661 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:30,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:30,663 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:30,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-06 20:19:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:31,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 20:19:31,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:31,087 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-12-06 20:19:31,087 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 14 treesize of output 20 [2021-12-06 20:19:31,108 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-12-06 20:19:31,108 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 18 [2021-12-06 20:19:31,312 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-06 20:19:31,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2021-12-06 20:19:31,347 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 20:19:31,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2021-12-06 20:19:31,579 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:31,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:31,580 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:31,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400141698] [2021-12-06 20:19:31,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400141698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:31,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:31,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:19:31,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499789] [2021-12-06 20:19:31,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:31,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 20:19:31,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:31,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 20:19:31,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:19:31,581 INFO L87 Difference]: Start difference. First operand 268 states and 308 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:31,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:31,704 INFO L93 Difference]: Finished difference Result 268 states and 307 transitions. [2021-12-06 20:19:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 20:19:31,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-12-06 20:19:31,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:31,706 INFO L225 Difference]: With dead ends: 268 [2021-12-06 20:19:31,706 INFO L226 Difference]: Without dead ends: 268 [2021-12-06 20:19:31,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:19:31,707 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 4 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 329 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:31,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1353 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 329 Unchecked, 0.0s Time] [2021-12-06 20:19:31,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-12-06 20:19:31,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2021-12-06 20:19:31,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 193 states have (on average 1.5699481865284974) internal successors, (303), 264 states have internal predecessors, (303), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:31,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 307 transitions. [2021-12-06 20:19:31,715 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 307 transitions. Word has length 59 [2021-12-06 20:19:31,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:31,715 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 307 transitions. [2021-12-06 20:19:31,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:31,715 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 307 transitions. [2021-12-06 20:19:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 20:19:31,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:31,715 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] [2021-12-06 20:19:31,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-12-06 20:19:31,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:31,916 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:31,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:31,918 INFO L85 PathProgramCache]: Analyzing trace with hash 341240962, now seen corresponding path program 1 times [2021-12-06 20:19:31,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:31,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486801844] [2021-12-06 20:19:31,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:31,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:31,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:31,924 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:31,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-06 20:19:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:32,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:19:32,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:32,316 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-12-06 20:19:32,316 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 18 [2021-12-06 20:19:32,340 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-06 20:19:32,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 30 [2021-12-06 20:19:32,404 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:32,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:32,404 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:32,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486801844] [2021-12-06 20:19:32,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486801844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:32,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:32,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:19:32,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170576927] [2021-12-06 20:19:32,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:32,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:19:32,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:19:32,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:19:32,405 INFO L87 Difference]: Start difference. First operand 268 states and 307 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:32,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:32,695 INFO L93 Difference]: Finished difference Result 275 states and 314 transitions. [2021-12-06 20:19:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:19:32,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-12-06 20:19:32,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:32,696 INFO L225 Difference]: With dead ends: 275 [2021-12-06 20:19:32,696 INFO L226 Difference]: Without dead ends: 275 [2021-12-06 20:19:32,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:19:32,697 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 209 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:32,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 354 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 67 Unchecked, 0.3s Time] [2021-12-06 20:19:32,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-12-06 20:19:32,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 272. [2021-12-06 20:19:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 198 states have (on average 1.5656565656565657) internal successors, (310), 268 states have internal predecessors, (310), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:32,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 314 transitions. [2021-12-06 20:19:32,702 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 314 transitions. Word has length 59 [2021-12-06 20:19:32,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:32,703 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 314 transitions. [2021-12-06 20:19:32,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:32,703 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 314 transitions. [2021-12-06 20:19:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-06 20:19:32,703 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:32,703 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] [2021-12-06 20:19:32,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-06 20:19:32,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:32,904 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:32,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:32,904 INFO L85 PathProgramCache]: Analyzing trace with hash -278071788, now seen corresponding path program 1 times [2021-12-06 20:19:32,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:32,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975544676] [2021-12-06 20:19:32,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:32,905 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:32,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:32,906 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:32,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-06 20:19:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:33,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 20:19:33,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:33,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 20:19:33,395 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 16 treesize of output 12 [2021-12-06 20:19:33,515 INFO L354 Elim1Store]: treesize reduction 46, result has 20.7 percent of original size [2021-12-06 20:19:33,515 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 45 treesize of output 35 [2021-12-06 20:19:33,603 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-06 20:19:33,603 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 47 treesize of output 19 [2021-12-06 20:19:33,622 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:33,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:33,623 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:33,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975544676] [2021-12-06 20:19:33,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975544676] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:33,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:33,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:19:33,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090692216] [2021-12-06 20:19:33,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:33,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 20:19:33,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:33,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:19:33,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:19:33,624 INFO L87 Difference]: Start difference. First operand 272 states and 314 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:34,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:34,407 INFO L93 Difference]: Finished difference Result 270 states and 310 transitions. [2021-12-06 20:19:34,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:19:34,407 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2021-12-06 20:19:34,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:34,409 INFO L225 Difference]: With dead ends: 270 [2021-12-06 20:19:34,409 INFO L226 Difference]: Without dead ends: 270 [2021-12-06 20:19:34,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:19:34,409 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 236 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:34,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 1002 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 338 Invalid, 0 Unknown, 82 Unchecked, 0.7s Time] [2021-12-06 20:19:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-12-06 20:19:34,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2021-12-06 20:19:34,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 198 states have (on average 1.5454545454545454) internal successors, (306), 266 states have internal predecessors, (306), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 310 transitions. [2021-12-06 20:19:34,415 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 310 transitions. Word has length 62 [2021-12-06 20:19:34,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:34,415 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 310 transitions. [2021-12-06 20:19:34,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:34,415 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 310 transitions. [2021-12-06 20:19:34,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-06 20:19:34,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:34,415 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] [2021-12-06 20:19:34,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-12-06 20:19:34,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:34,616 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:34,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:34,617 INFO L85 PathProgramCache]: Analyzing trace with hash -278071787, now seen corresponding path program 1 times [2021-12-06 20:19:34,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:34,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361935365] [2021-12-06 20:19:34,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:34,618 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:34,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:34,619 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:34,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-06 20:19:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:35,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 20:19:35,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:35,101 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 20 treesize of output 18 [2021-12-06 20:19:35,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 20:19:35,150 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 [2021-12-06 20:19:35,161 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 [2021-12-06 20:19:35,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2021-12-06 20:19:35,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-12-06 20:19:35,295 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 27 treesize of output 9 [2021-12-06 20:19:35,298 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 25 treesize of output 7 [2021-12-06 20:19:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:35,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:35,316 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:35,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361935365] [2021-12-06 20:19:35,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361935365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:35,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:35,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:19:35,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393411778] [2021-12-06 20:19:35,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:35,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:19:35,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:35,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:19:35,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:19:35,317 INFO L87 Difference]: Start difference. First operand 270 states and 310 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:36,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:36,849 INFO L93 Difference]: Finished difference Result 269 states and 308 transitions. [2021-12-06 20:19:36,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:19:36,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2021-12-06 20:19:36,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:36,851 INFO L225 Difference]: With dead ends: 269 [2021-12-06 20:19:36,852 INFO L226 Difference]: Without dead ends: 269 [2021-12-06 20:19:36,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:19:36,852 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 233 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:36,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 836 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 20:19:36,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-12-06 20:19:36,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2021-12-06 20:19:36,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 198 states have (on average 1.5353535353535352) internal successors, (304), 265 states have internal predecessors, (304), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:36,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 308 transitions. [2021-12-06 20:19:36,857 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 308 transitions. Word has length 62 [2021-12-06 20:19:36,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:36,857 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 308 transitions. [2021-12-06 20:19:36,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:36,857 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 308 transitions. [2021-12-06 20:19:36,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 20:19:36,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:36,858 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] [2021-12-06 20:19:36,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-12-06 20:19:37,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:37,059 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:37,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:37,060 INFO L85 PathProgramCache]: Analyzing trace with hash -450354753, now seen corresponding path program 1 times [2021-12-06 20:19:37,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:37,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900527079] [2021-12-06 20:19:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:37,064 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:37,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:37,066 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:37,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-06 20:19:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:37,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 20:19:37,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:37,618 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 20 treesize of output 18 [2021-12-06 20:19:37,666 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-06 20:19:37,667 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 25 treesize of output 32 [2021-12-06 20:19:37,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-12-06 20:19:37,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 42 [2021-12-06 20:19:37,919 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 20:19:37,919 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 54 treesize of output 55 [2021-12-06 20:19:37,973 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 49 treesize of output 22 [2021-12-06 20:19:38,055 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:38,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:38,056 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:38,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900527079] [2021-12-06 20:19:38,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900527079] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:38,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:38,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:19:38,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19901437] [2021-12-06 20:19:38,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:38,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 20:19:38,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:38,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 20:19:38,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:19:38,057 INFO L87 Difference]: Start difference. First operand 269 states and 308 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:39,138 INFO L93 Difference]: Finished difference Result 290 states and 330 transitions. [2021-12-06 20:19:39,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:19:39,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2021-12-06 20:19:39,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:39,140 INFO L225 Difference]: With dead ends: 290 [2021-12-06 20:19:39,140 INFO L226 Difference]: Without dead ends: 290 [2021-12-06 20:19:39,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:19:39,141 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 457 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:39,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 668 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 273 Invalid, 0 Unknown, 91 Unchecked, 0.9s Time] [2021-12-06 20:19:39,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-12-06 20:19:39,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 278. [2021-12-06 20:19:39,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 207 states have (on average 1.541062801932367) internal successors, (319), 274 states have internal predecessors, (319), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:39,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 323 transitions. [2021-12-06 20:19:39,146 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 323 transitions. Word has length 66 [2021-12-06 20:19:39,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:39,146 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 323 transitions. [2021-12-06 20:19:39,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:39,146 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 323 transitions. [2021-12-06 20:19:39,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 20:19:39,146 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:39,147 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] [2021-12-06 20:19:39,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-06 20:19:39,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:39,348 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:39,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:39,349 INFO L85 PathProgramCache]: Analyzing trace with hash -450354752, now seen corresponding path program 1 times [2021-12-06 20:19:39,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:39,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401647566] [2021-12-06 20:19:39,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:39,353 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:39,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:39,354 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:39,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-06 20:19:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:39,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 20:19:39,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:39,861 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 22 treesize of output 20 [2021-12-06 20:19:39,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 20:19:39,907 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 20:19:39,908 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 17 treesize of output 17 [2021-12-06 20:19:39,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-12-06 20:19:39,959 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 [2021-12-06 20:19:40,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2021-12-06 20:19:40,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-12-06 20:19:40,190 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 20:19:40,190 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 58 treesize of output 57 [2021-12-06 20:19:40,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-12-06 20:19:40,295 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 40 treesize of output 13 [2021-12-06 20:19:40,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2021-12-06 20:19:40,330 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:19:40,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:19:40,331 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:19:40,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401647566] [2021-12-06 20:19:40,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401647566] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:19:40,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:19:40,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 20:19:40,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241899315] [2021-12-06 20:19:40,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:19:40,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 20:19:40,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:19:40,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 20:19:40,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:19:40,332 INFO L87 Difference]: Start difference. First operand 278 states and 323 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:19:42,512 INFO L93 Difference]: Finished difference Result 290 states and 327 transitions. [2021-12-06 20:19:42,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:19:42,513 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2021-12-06 20:19:42,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:19:42,514 INFO L225 Difference]: With dead ends: 290 [2021-12-06 20:19:42,514 INFO L226 Difference]: Without dead ends: 290 [2021-12-06 20:19:42,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-12-06 20:19:42,515 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 476 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:19:42,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 694 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-06 20:19:42,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-12-06 20:19:42,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 278. [2021-12-06 20:19:42,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 207 states have (on average 1.5217391304347827) internal successors, (315), 274 states have internal predecessors, (315), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:19:42,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 319 transitions. [2021-12-06 20:19:42,520 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 319 transitions. Word has length 66 [2021-12-06 20:19:42,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:19:42,520 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 319 transitions. [2021-12-06 20:19:42,520 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:19:42,520 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 319 transitions. [2021-12-06 20:19:42,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-06 20:19:42,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:19:42,521 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:19:42,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-12-06 20:19:42,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:19:42,722 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:19:42,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:19:42,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1408765628, now seen corresponding path program 1 times [2021-12-06 20:19:42,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:19:42,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358684948] [2021-12-06 20:19:42,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:19:42,726 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:19:42,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:19:42,727 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:19:42,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-06 20:19:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:19:43,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 20:19:43,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:19:43,360 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 20 treesize of output 18 [2021-12-06 20:19:43,409 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-06 20:19:43,409 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 25 treesize of output 32 [2021-12-06 20:19:43,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-12-06 20:19:43,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 40 [2021-12-06 20:19:43,733 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 20:19:43,733 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 50 treesize of output 51 [2021-12-06 20:19:43,860 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 20:19:43,860 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 52 treesize of output 53 [2021-12-06 20:19:43,935 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 47 treesize of output 20 [2021-12-06 20:19:44,024 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-06 20:19:44,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:19:44,251 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1318 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse0 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0) v_ArrVal_1318) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0)))))))) (_ bv1 1)))) is different from false [2021-12-06 20:19:44,283 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1318 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1317 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse1 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem126#1.base| v_ArrVal_1317))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1318)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1)))))))) (_ bv1 1)))) is different from false [2021-12-06 20:19:44,300 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1318 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1317 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse1 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1317))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1318)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1)))))))) (_ bv1 1)))) is different from false [2021-12-06 20:19:44,331 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1316 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1318 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1317 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse1 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1316))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1317)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1318)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))))))))) (_ bv1 1)))) is different from false [2021-12-06 20:19:44,363 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 20:19:44,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 84 [2021-12-06 20:19:44,368 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 3705 treesize of output 2931 [2021-12-06 20:19:44,398 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 2927 treesize of output 2465 [2021-12-06 20:19:44,413 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 2465 treesize of output 1870 [2021-12-06 20:19:44,428 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 1870 treesize of output 1842 [2021-12-06 20:20:23,513 INFO L354 Elim1Store]: treesize reduction -11, result has 113.6 percent of original size [2021-12-06 20:20:23,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 251 treesize of output 328 [2021-12-06 20:20:24,220 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 190 trivial. 2 not checked. [2021-12-06 20:20:24,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:20:24,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358684948] [2021-12-06 20:20:24,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358684948] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:20:24,220 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:20:24,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-12-06 20:20:24,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240192488] [2021-12-06 20:20:24,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:20:24,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 20:20:24,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:20:24,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 20:20:24,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=164, Unknown=7, NotChecked=116, Total=342 [2021-12-06 20:20:24,221 INFO L87 Difference]: Start difference. First operand 278 states and 319 transitions. Second operand has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:20:26,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:20:26,400 INFO L93 Difference]: Finished difference Result 446 states and 515 transitions. [2021-12-06 20:20:26,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:20:26,401 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2021-12-06 20:20:26,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:20:26,404 INFO L225 Difference]: With dead ends: 446 [2021-12-06 20:20:26,404 INFO L226 Difference]: Without dead ends: 446 [2021-12-06 20:20:26,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 121 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=86, Invalid=229, Unknown=7, NotChecked=140, Total=462 [2021-12-06 20:20:26,405 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 658 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2134 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:20:26,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [659 Valid, 2056 Invalid, 2474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 325 Invalid, 0 Unknown, 2134 Unchecked, 1.4s Time] [2021-12-06 20:20:26,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-12-06 20:20:26,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 296. [2021-12-06 20:20:26,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 225 states have (on average 1.5155555555555555) internal successors, (341), 292 states have internal predecessors, (341), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:20:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 345 transitions. [2021-12-06 20:20:26,414 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 345 transitions. Word has length 71 [2021-12-06 20:20:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:20:26,414 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 345 transitions. [2021-12-06 20:20:26,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:20:26,414 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 345 transitions. [2021-12-06 20:20:26,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-06 20:20:26,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:20:26,415 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:20:26,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-12-06 20:20:26,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:20:26,615 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:20:26,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:20:26,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1408765627, now seen corresponding path program 1 times [2021-12-06 20:20:26,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:20:26,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741765661] [2021-12-06 20:20:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:20:26,617 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:20:26,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:20:26,618 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:20:26,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-12-06 20:20:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:20:27,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-06 20:20:27,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:20:27,225 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 20 treesize of output 18 [2021-12-06 20:20:27,263 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 20:20:27,263 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 17 treesize of output 17 [2021-12-06 20:20:27,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 20:20:27,301 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 [2021-12-06 20:20:27,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-12-06 20:20:27,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2021-12-06 20:20:27,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-12-06 20:20:27,558 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 20:20:27,558 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 58 treesize of output 57 [2021-12-06 20:20:27,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-12-06 20:20:27,777 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 20:20:27,777 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 58 treesize of output 57 [2021-12-06 20:20:27,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-12-06 20:20:27,927 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 40 treesize of output 13 [2021-12-06 20:20:27,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2021-12-06 20:20:27,964 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-12-06 20:20:27,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:20:29,425 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32)))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem128#1.base| v_ArrVal_1436) |c_ULTIMATE.start_main_~argv~0#1.base|) (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|)))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 (_ bv1 64) .cse1)))) (forall ((v_ArrVal_1437 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse2 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (bvule (bvadd ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32))) (_ bv1 64) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem128#1.base| v_ArrVal_1436) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem128#1.base| v_ArrVal_1437) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))))) is different from false [2021-12-06 20:20:29,573 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1437 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse1 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (bvule (bvadd ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32))) (_ bv1 64) (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1436) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1437) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse2 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32)))) (.cse3 (let ((.cse4 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4) v_ArrVal_1436) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4)))) (bvule (bvadd .cse2 .cse3) (bvadd .cse2 (_ bv1 64) .cse3))))) is different from false [2021-12-06 20:20:29,753 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse1 (let ((.cse2 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2) v_ArrVal_1436) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 (_ bv1 64) .cse1)))) (forall ((v_ArrVal_1437 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse4 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))) (bvule (bvadd ((_ sign_extend 32) (_ bv1 32)) (_ bv1 64) (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_1436) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_1437) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))))))) is different from false [2021-12-06 20:20:29,847 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1437 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1435 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1434 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem126#1.base| v_ArrVal_1435)) (.cse1 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem126#1.base| v_ArrVal_1434) .cse0 v_ArrVal_1436) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) ((_ sign_extend 32) (_ bv1 32)) (_ bv1 64)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1437) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1435 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1434 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse3 (let ((.cse5 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem126#1.base| v_ArrVal_1434) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem126#1.base| v_ArrVal_1435) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse5) v_ArrVal_1436) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse5))) (.cse4 ((_ sign_extend 32) (_ bv1 32)))) (bvule (bvadd .cse3 .cse4) (bvadd .cse3 .cse4 (_ bv1 64)))))) is different from false [2021-12-06 20:20:29,960 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1437 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1435 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1434 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse2 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1435))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (bvule (bvadd ((_ sign_extend 32) (_ bv1 32)) (_ bv1 64) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1434) .cse1 v_ArrVal_1436) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1437) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1435 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1434 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse4 ((_ sign_extend 32) (_ bv1 32))) (.cse5 (let ((.cse7 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7))) (store (store |c_#memory_$Pointer$.offset| .cse6 v_ArrVal_1434) (select (select (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_1435) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7) v_ArrVal_1436)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7)))) (bvule (bvadd .cse4 .cse5) (bvadd .cse4 (_ bv1 64) .cse5))))) is different from false [2021-12-06 20:20:30,337 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1433 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1432 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1435 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1434 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (let ((.cse4 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1433))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1432) .cse2 v_ArrVal_1434) (select (select (store .cse3 .cse2 v_ArrVal_1435) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4) v_ArrVal_1436))) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))) (.cse1 ((_ sign_extend 32) (_ bv1 32)))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv1 64))))) (forall ((v_ArrVal_1437 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1436 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1433 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1432 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1435 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1434 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1433)) (.cse7 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse5 (select (select .cse9 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7))) (let ((.cse8 (store .cse9 .cse5 v_ArrVal_1435))) (let ((.cse6 (select (select .cse8 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1432) .cse5 v_ArrVal_1434) .cse6 v_ArrVal_1436) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7) ((_ sign_extend 32) (_ bv1 32)) (_ bv1 64)) (select |c_#length| (select (select (store .cse8 .cse6 v_ArrVal_1437) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7))))))))) is different from false [2021-12-06 20:20:30,425 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 20:20:30,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 228 treesize of output 216 [2021-12-06 20:20:30,442 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 20:20:30,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 138 [2021-12-06 20:20:30,451 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 1481 treesize of output 1238 [2021-12-06 20:20:30,462 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 5387 treesize of output 5054 [2021-12-06 20:20:30,486 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 5050 treesize of output 4602 [2021-12-06 20:20:30,501 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 4602 treesize of output 4210 [2021-12-06 20:20:30,515 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 4210 treesize of output 3314 [2021-12-06 20:20:30,533 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 3314 treesize of output 2880 [2021-12-06 20:20:30,546 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 2880 treesize of output 2628 [2021-12-06 20:20:48,555 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 20:20:48,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 228 [2021-12-06 20:20:48,608 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 20:20:48,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 137 [2021-12-06 20:20:48,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:20:48,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 617 treesize of output 392 [2021-12-06 20:20:48,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:20:48,630 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:20:48,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 494 treesize of output 413 [2021-12-06 20:20:48,647 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 409 treesize of output 367 [2021-12-06 20:20:48,657 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 367 treesize of output 339 [2021-12-06 20:20:48,666 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 339 treesize of output 234 [2021-12-06 20:20:49,581 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-12-06 20:20:49,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2021-12-06 20:20:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 3 not checked. [2021-12-06 20:20:49,614 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:20:49,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741765661] [2021-12-06 20:20:49,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741765661] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:20:49,614 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:20:49,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-12-06 20:20:49,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773665554] [2021-12-06 20:20:49,615 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:20:49,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-06 20:20:49,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:20:49,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-06 20:20:49,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=260, Unknown=6, NotChecked=222, Total=552 [2021-12-06 20:20:49,616 INFO L87 Difference]: Start difference. First operand 296 states and 345 transitions. Second operand has 24 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 24 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:21:01,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:21:01,181 INFO L93 Difference]: Finished difference Result 302 states and 351 transitions. [2021-12-06 20:21:01,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 20:21:01,183 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 24 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2021-12-06 20:21:01,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:21:01,184 INFO L225 Difference]: With dead ends: 302 [2021-12-06 20:21:01,184 INFO L226 Difference]: Without dead ends: 302 [2021-12-06 20:21:01,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=125, Invalid=493, Unknown=6, NotChecked=306, Total=930 [2021-12-06 20:21:01,185 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 25 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 676 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:21:01,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 3163 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 879 Invalid, 0 Unknown, 676 Unchecked, 7.3s Time] [2021-12-06 20:21:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-12-06 20:21:01,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 301. [2021-12-06 20:21:01,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 230 states have (on average 1.5043478260869565) internal successors, (346), 297 states have internal predecessors, (346), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:21:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 350 transitions. [2021-12-06 20:21:01,190 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 350 transitions. Word has length 71 [2021-12-06 20:21:01,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:21:01,190 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 350 transitions. [2021-12-06 20:21:01,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 24 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:21:01,191 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 350 transitions. [2021-12-06 20:21:01,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-06 20:21:01,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:21:01,191 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:21:01,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-12-06 20:21:01,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:21:01,392 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 88 more)] === [2021-12-06 20:21:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:21:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1990593760, now seen corresponding path program 2 times [2021-12-06 20:21:01,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:21:01,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516955877] [2021-12-06 20:21:01,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:21:01,397 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:21:01,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:21:01,400 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:21:01,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fc1cd7-4b0b-4162-bae4-d33b76385e00/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-12-06 20:21:02,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:21:02,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:21:02,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-06 20:21:02,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:21:02,217 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 24 treesize of output 22 [2021-12-06 20:21:02,269 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 20:21:02,270 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 17 treesize of output 17 [2021-12-06 20:21:02,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 20:21:02,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-12-06 20:21:02,334 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 [2021-12-06 20:21:02,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2021-12-06 20:21:02,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-12-06 20:21:02,628 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 20:21:02,628 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 58 treesize of output 57 [2021-12-06 20:21:02,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-12-06 20:21:02,865 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 20:21:02,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2021-12-06 20:21:02,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-12-06 20:21:03,164 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 20:21:03,164 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 58 treesize of output 57 [2021-12-06 20:21:03,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-12-06 20:21:03,339 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 40 treesize of output 13 [2021-12-06 20:21:03,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2021-12-06 20:21:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-06 20:21:03,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:21:04,827 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32)))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem128#1.base| v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|)))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 (_ bv1 64) .cse1)))) (forall ((v_ArrVal_1563 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse2 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (bvule (bvadd ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32))) (_ bv1 64) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem128#1.base| v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem128#1.base| v_ArrVal_1563) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))))) is different from false [2021-12-06 20:21:04,945 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1563 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse1 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (bvule (bvadd ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32))) (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) (_ bv1 64)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1563) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse2 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32)))) (.cse3 (let ((.cse4 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4) v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4)))) (bvule (bvadd .cse2 .cse3) (bvadd .cse2 .cse3 (_ bv1 64)))))) is different from false [2021-12-06 20:21:05,149 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1563 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse1 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) (_ bv1 64) ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv2 32)))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1563) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse2 (let ((.cse4 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4) v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))) (.cse3 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv2 32))))) (bvule (bvadd .cse2 .cse3) (bvadd .cse2 (_ bv1 64) .cse3))))) is different from false [2021-12-06 20:21:05,428 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (let ((.cse2 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem128#1.base| v_ArrVal_1560) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem128#1.base| v_ArrVal_1561) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2) v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (.cse1 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv2 32))))) (bvule (bvadd .cse0 .cse1) (bvadd (_ bv1 64) .cse0 .cse1)))) (forall ((v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1563 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem128#1.base| v_ArrVal_1561)) (.cse4 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))) (bvule (bvadd (_ bv1 64) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem128#1.base| v_ArrVal_1560) .cse3 v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4) ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv2 32)))) (select |c_#length| (select (select (store .cse5 .cse3 v_ArrVal_1563) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))))))) is different from false [2021-12-06 20:21:06,211 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1563 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse2 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1561))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (bvule (bvadd (_ bv1 64) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1560) .cse1 v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2) ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv2 32)))) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1563) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse4 (let ((.cse7 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7))) (store (store |c_#memory_$Pointer$.offset| .cse6 v_ArrVal_1560) (select (select (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_1561) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7) v_ArrVal_1562)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7))) (.cse5 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv2 32))))) (bvule (bvadd .cse4 .cse5) (bvadd (_ bv1 64) .cse4 .cse5))))) is different from false [2021-12-06 20:21:06,397 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (let ((.cse3 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1560) (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1561) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3) v_ArrVal_1562)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (.cse1 ((_ sign_extend 32) (_ bv2 32)))) (bvule (bvadd .cse0 .cse1) (bvadd (_ bv1 64) .cse0 .cse1)))) (forall ((v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1563 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse6 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse6))) (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_1561))) (let ((.cse5 (select (select .cse7 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse6))) (bvule (bvadd (_ bv1 64) (select (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_1560) .cse5 v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse6) ((_ sign_extend 32) (_ bv2 32))) (select |c_#length| (select (select (store .cse7 .cse5 v_ArrVal_1563) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse6))))))))) is different from false [2021-12-06 20:21:06,723 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1558 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1559 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (let ((.cse4 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem126#1.base| v_ArrVal_1558))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem126#1.base| v_ArrVal_1559) .cse2 v_ArrVal_1560) (select (select (store .cse3 .cse2 v_ArrVal_1561) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4) v_ArrVal_1562))) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))) (.cse1 ((_ sign_extend 32) (_ bv2 32)))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 (_ bv1 64) .cse1)))) (forall ((v_ArrVal_1558 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1559 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1563 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem126#1.base| v_ArrVal_1558)) (.cse7 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse5 (select (select .cse9 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7))) (let ((.cse8 (store .cse9 .cse5 v_ArrVal_1561))) (let ((.cse6 (select (select .cse8 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem126#1.base| v_ArrVal_1559) .cse5 v_ArrVal_1560) .cse6 v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7) (_ bv1 64) ((_ sign_extend 32) (_ bv2 32))) (select |c_#length| (select (select (store .cse8 .cse6 v_ArrVal_1563) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse7))))))))) is different from false [2021-12-06 20:21:08,906 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1558 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1559 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (let ((.cse5 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse5))) (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1558))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse5))) (store (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1559) .cse3 v_ArrVal_1560) (select (select (store .cse4 .cse3 v_ArrVal_1561) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse5) v_ArrVal_1562)))) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse5))) (.cse1 ((_ sign_extend 32) (_ bv2 32)))) (bvule (bvadd .cse0 .cse1) (bvadd (_ bv1 64) .cse0 .cse1)))) (forall ((v_ArrVal_1558 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1559 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1563 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse9 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (let ((.cse11 (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_1558))) (let ((.cse7 (select (select .cse11 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (let ((.cse10 (store .cse11 .cse7 v_ArrVal_1561))) (let ((.cse8 (select (select .cse10 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (bvule (bvadd (_ bv1 64) (select (select (store (store (store |c_#memory_$Pointer$.offset| .cse6 v_ArrVal_1559) .cse7 v_ArrVal_1560) .cse8 v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9) ((_ sign_extend 32) (_ bv2 32))) (select |c_#length| (select (select (store .cse10 .cse8 v_ArrVal_1563) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))))))))))) is different from false [2021-12-06 20:21:11,088 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1558 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1557 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1559 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1556 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1563 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1556)) (.cse3 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_1558))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_1561))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (bvule (bvadd (_ bv1 64) ((_ sign_extend 32) (_ bv2 32)) (select (select (store (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1557) .cse0 v_ArrVal_1559) .cse1 v_ArrVal_1560) .cse2 v_ArrVal_1562) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_1563) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_1558 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1557 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1559 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1556 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1561 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1560 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1562 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse7 ((_ sign_extend 32) (_ bv2 32))) (.cse8 (let ((.cse12 (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|) (_ bv8 64)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse13 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1556))) (let ((.cse9 (select (select .cse13 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse12))) (let ((.cse11 (store .cse13 .cse9 v_ArrVal_1558))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse12))) (store (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1557) .cse9 v_ArrVal_1559) .cse10 v_ArrVal_1560) (select (select (store .cse11 .cse10 v_ArrVal_1561) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse12) v_ArrVal_1562))))) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse12)))) (bvule (bvadd .cse7 .cse8) (bvadd (_ bv1 64) .cse7 .cse8))))) is different from false [2021-12-06 20:21:11,240 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 20:21:11,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 451 treesize of output 452 [2021-12-06 20:21:11,282 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 20:21:11,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 438 treesize of output 257 [2021-12-06 20:21:11,321 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 655635 treesize of output 558390 [2021-12-06 20:21:20,495 WARN L227 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 993 DAG size of output: 988 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-06 20:21:22,024 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 109957745 treesize of output 108286760 [2021-12-06 20:24:39,216 WARN L227 SmtUtils]: Spent 3.29m on a formula simplification that was a NOOP. DAG size: 14047 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-06 20:27:52,798 WARN L227 SmtUtils]: Spent 3.23m on a formula simplification that was a NOOP. DAG size: 14044 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-06 20:27:53,380 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 108286756 treesize of output 98189732 [2021-12-06 20:31:07,508 WARN L227 SmtUtils]: Spent 3.24m on a formula simplification that was a NOOP. DAG size: 14043 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-12-06 20:31:08,096 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 98189732 treesize of output 88092708