./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:42:39,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:42:39,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:42:39,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:42:39,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:42:39,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:42:39,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:42:39,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:42:39,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:42:39,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:42:39,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:42:39,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:42:39,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:42:39,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:42:39,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:42:39,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:42:39,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:42:39,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:42:39,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:42:39,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:42:39,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:42:39,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:42:39,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:42:39,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:42:39,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:42:39,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:42:39,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:42:39,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:42:39,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:42:39,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:42:39,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:42:39,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:42:39,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:42:39,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:42:39,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:42:39,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:42:39,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:42:39,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:42:39,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:42:39,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:42:39,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:42:39,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-13 01:42:39,788 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:42:39,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:42:39,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:42:39,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:42:39,790 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:42:39,797 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:42:39,797 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:42:39,797 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:42:39,798 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:42:39,798 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:42:39,799 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:42:39,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:42:39,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:42:39,800 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:42:39,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:42:39,800 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:42:39,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 01:42:39,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 01:42:39,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:42:39,801 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:42:39,801 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:42:39,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:42:39,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:42:39,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:42:39,802 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 01:42:39,802 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 01:42:39,803 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 01:42:39,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:42:39,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:42:39,803 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:42:39,803 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:42:39,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:42:39,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:42:39,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:39,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:42:39,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:42:39,805 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:42:39,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:42:39,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:42:39,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:42:39,806 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c [2021-11-13 01:42:40,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:42:40,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:42:40,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:42:40,159 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:42:40,160 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:42:40,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2021-11-13 01:42:40,252 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/data/da831f5dd/b0c2aeb7a65f414982fcc34d14ec671b/FLAG74bd8affc [2021-11-13 01:42:40,873 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:42:40,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2021-11-13 01:42:40,896 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/data/da831f5dd/b0c2aeb7a65f414982fcc34d14ec671b/FLAG74bd8affc [2021-11-13 01:42:41,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/data/da831f5dd/b0c2aeb7a65f414982fcc34d14ec671b [2021-11-13 01:42:41,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:42:41,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:42:41,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:41,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:42:41,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:42:41,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:41" (1/1) ... [2021-11-13 01:42:41,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a12740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:41, skipping insertion in model container [2021-11-13 01:42:41,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:41" (1/1) ... [2021-11-13 01:42:41,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:42:41,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:41,782 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i[33021,33034] [2021-11-13 01:42:42,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:42,056 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 01:42:42,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bc74702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:42, skipping insertion in model container [2021-11-13 01:42:42,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:42,060 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:42:42,063 INFO L158 Benchmark]: Toolchain (without parser) took 976.84ms. Allocated memory is still 88.1MB. Free memory was 51.1MB in the beginning and 52.8MB in the end (delta: -1.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:42:42,067 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 88.1MB. Free memory was 63.5MB in the beginning and 63.5MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:42:42,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 971.76ms. Allocated memory is still 88.1MB. Free memory was 50.8MB in the beginning and 53.0MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:42:42,071 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 88.1MB. Free memory was 63.5MB in the beginning and 63.5MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 971.76ms. Allocated memory is still 88.1MB. Free memory was 50.8MB in the beginning and 53.0MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 752]: 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_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:42:44,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:42:44,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:42:44,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:42:44,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:42:44,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:42:44,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:42:44,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:42:44,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:42:44,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:42:44,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:42:44,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:42:44,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:42:44,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:42:44,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:42:44,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:42:44,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:42:44,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:42:44,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:42:44,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:42:44,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:42:44,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:42:44,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:42:44,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:42:44,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:42:44,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:42:44,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:42:44,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:42:44,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:42:44,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:42:44,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:42:44,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:42:44,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:42:44,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:42:44,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:42:44,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:42:44,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:42:44,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:42:44,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:42:44,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:42:44,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:42:44,823 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-13 01:42:44,869 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:42:44,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:42:44,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:42:44,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:42:44,871 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:42:44,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:42:44,872 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:42:44,872 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:42:44,872 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:42:44,873 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:42:44,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 01:42:44,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 01:42:44,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:42:44,876 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:42:44,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:42:44,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:42:44,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:42:44,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:42:44,877 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 01:42:44,877 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 01:42:44,878 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 01:42:44,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:42:44,878 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:42:44,878 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:42:44,879 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:42:44,879 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:42:44,879 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:42:44,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:42:44,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:42:44,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:42:44,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:44,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:42:44,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:42:44,881 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:42:44,881 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:42:44,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:42:44,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:42:44,882 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_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c [2021-11-13 01:42:45,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:42:45,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:42:45,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:42:45,360 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:42:45,365 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:42:45,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2021-11-13 01:42:45,447 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/data/0f9747d4c/5311feb4506b42c2a2bbc22423ca01ae/FLAG4fcbc950a [2021-11-13 01:42:46,353 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:42:46,354 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2021-11-13 01:42:46,382 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/data/0f9747d4c/5311feb4506b42c2a2bbc22423ca01ae/FLAG4fcbc950a [2021-11-13 01:42:46,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/data/0f9747d4c/5311feb4506b42c2a2bbc22423ca01ae [2021-11-13 01:42:46,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:42:46,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:42:46,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:46,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:42:46,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:42:46,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:46" (1/1) ... [2021-11-13 01:42:46,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b655afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:46, skipping insertion in model container [2021-11-13 01:42:46,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:46" (1/1) ... [2021-11-13 01:42:46,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:42:46,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:47,331 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i[33021,33034] [2021-11-13 01:42:47,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:47,607 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:42:47,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:47,679 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i[33021,33034] [2021-11-13 01:42:47,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:47,833 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:42:47,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i[33021,33034] [2021-11-13 01:42:47,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:48,030 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:42:48,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48 WrapperNode [2021-11-13 01:42:48,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:48,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:42:48,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:42:48,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:42:48,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (1/1) ... [2021-11-13 01:42:48,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (1/1) ... [2021-11-13 01:42:48,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:42:48,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:42:48,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:42:48,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:42:48,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (1/1) ... [2021-11-13 01:42:48,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (1/1) ... [2021-11-13 01:42:48,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (1/1) ... [2021-11-13 01:42:48,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (1/1) ... [2021-11-13 01:42:48,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (1/1) ... [2021-11-13 01:42:48,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (1/1) ... [2021-11-13 01:42:48,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (1/1) ... [2021-11-13 01:42:48,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:42:48,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:42:48,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:42:48,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:42:48,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (1/1) ... [2021-11-13 01:42:48,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:48,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:42:48,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:42:48,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:42:48,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:42:48,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:42:48,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 01:42:48,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 01:42:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 01:42:48,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 01:42:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:42:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:42:48,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:42:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:42:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:42:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:42:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:42:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:42:48,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:42:48,967 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-13 01:42:56,672 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:42:56,673 INFO L299 CfgBuilder]: Removed 69 assume(true) statements. [2021-11-13 01:42:56,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:42:56 BoogieIcfgContainer [2021-11-13 01:42:56,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:42:56,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:42:56,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:42:56,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:42:56,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:42:46" (1/3) ... [2021-11-13 01:42:56,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1471f710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:42:56, skipping insertion in model container [2021-11-13 01:42:56,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:48" (2/3) ... [2021-11-13 01:42:56,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1471f710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:42:56, skipping insertion in model container [2021-11-13 01:42:56,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:42:56" (3/3) ... [2021-11-13 01:42:56,687 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test4-2.i [2021-11-13 01:42:56,693 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:42:56,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 753 error locations. [2021-11-13 01:42:56,749 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:42:56,757 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:42:56,758 INFO L340 AbstractCegarLoop]: Starting to check reachability of 753 error locations. [2021-11-13 01:42:56,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 1473 states, 707 states have (on average 2.267326732673267) internal successors, (1603), 1464 states have internal predecessors, (1603), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-13 01:42:56,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:42:56,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:56,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:42:56,814 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:42:56,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:56,820 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2021-11-13 01:42:56,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:56,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277675715] [2021-11-13 01:42:56,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:56,835 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:56,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:56,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:56,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:42:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:57,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:42:57,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:57,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:57,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:57,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:57,149 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:57,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277675715] [2021-11-13 01:42:57,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277675715] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:57,150 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:57,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 01:42:57,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188449441] [2021-11-13 01:42:57,153 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:57,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:42:57,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:57,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:42:57,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:42:57,231 INFO L87 Difference]: Start difference. First operand has 1473 states, 707 states have (on average 2.267326732673267) internal successors, (1603), 1464 states have internal predecessors, (1603), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:57,406 INFO L93 Difference]: Finished difference Result 1455 states and 1540 transitions. [2021-11-13 01:42:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:42:57,409 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 01:42:57,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:57,444 INFO L225 Difference]: With dead ends: 1455 [2021-11-13 01:42:57,444 INFO L226 Difference]: Without dead ends: 1453 [2021-11-13 01:42:57,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:42:57,450 INFO L933 BasicCegarLoop]: 1540 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:57,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 21.13ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:42:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2021-11-13 01:42:57,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1453. [2021-11-13 01:42:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 698 states have (on average 2.157593123209169) internal successors, (1506), 1444 states have internal predecessors, (1506), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-13 01:42:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1538 transitions. [2021-11-13 01:42:57,604 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1538 transitions. Word has length 5 [2021-11-13 01:42:57,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:57,605 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 1538 transitions. [2021-11-13 01:42:57,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:57,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1538 transitions. [2021-11-13 01:42:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:42:57,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:57,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:42:57,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-13 01:42:57,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:57,822 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:42:57,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:57,823 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2021-11-13 01:42:57,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:57,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084182036] [2021-11-13 01:42:57,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:57,825 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:57,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:57,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:57,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:42:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:58,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:42:58,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:58,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 01:42:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:58,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:58,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:58,149 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:58,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084182036] [2021-11-13 01:42:58,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084182036] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:58,158 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:58,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 01:42:58,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965708405] [2021-11-13 01:42:58,159 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:58,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:42:58,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:58,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:42:58,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:42:58,162 INFO L87 Difference]: Start difference. First operand 1453 states and 1538 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:01,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:01,772 INFO L93 Difference]: Finished difference Result 1490 states and 1588 transitions. [2021-11-13 01:43:01,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:43:01,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 01:43:01,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:01,784 INFO L225 Difference]: With dead ends: 1490 [2021-11-13 01:43:01,784 INFO L226 Difference]: Without dead ends: 1490 [2021-11-13 01:43:01,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:43:01,786 INFO L933 BasicCegarLoop]: 810 mSDtfsCounter, 1159 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2899.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.83ms SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3499.75ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:01,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1175 Valid, 1015 Invalid, 936 Unknown, 0 Unchecked, 26.83ms Time], IncrementalHoareTripleChecker [105 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3499.75ms Time] [2021-11-13 01:43:01,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2021-11-13 01:43:01,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1436. [2021-11-13 01:43:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 774 states have (on average 2.0) internal successors, (1548), 1427 states have internal predecessors, (1548), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-13 01:43:01,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1580 transitions. [2021-11-13 01:43:01,842 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1580 transitions. Word has length 5 [2021-11-13 01:43:01,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:01,843 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 1580 transitions. [2021-11-13 01:43:01,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:01,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1580 transitions. [2021-11-13 01:43:01,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:43:01,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:01,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:43:01,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:02,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:02,058 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:02,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:02,059 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2021-11-13 01:43:02,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:02,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534129370] [2021-11-13 01:43:02,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:02,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:02,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:02,062 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:02,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:43:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:02,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:43:02,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:02,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 01:43:02,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:02,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:02,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:02,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534129370] [2021-11-13 01:43:02,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534129370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:02,363 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:02,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-13 01:43:02,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062563372] [2021-11-13 01:43:02,364 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:02,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:43:02,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:02,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:43:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:02,365 INFO L87 Difference]: Start difference. First operand 1436 states and 1580 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:09,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:09,910 INFO L93 Difference]: Finished difference Result 1790 states and 1955 transitions. [2021-11-13 01:43:09,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:43:09,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 01:43:09,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:09,923 INFO L225 Difference]: With dead ends: 1790 [2021-11-13 01:43:09,923 INFO L226 Difference]: Without dead ends: 1790 [2021-11-13 01:43:09,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:09,925 INFO L933 BasicCegarLoop]: 1141 mSDtfsCounter, 1119 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6498.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.00ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7442.42ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:09,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 1722 Invalid, 1054 Unknown, 0 Unchecked, 23.00ms Time], IncrementalHoareTripleChecker [28 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 7442.42ms Time] [2021-11-13 01:43:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2021-11-13 01:43:09,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1592. [2021-11-13 01:43:09,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 940 states have (on average 1.9723404255319148) internal successors, (1854), 1583 states have internal predecessors, (1854), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-13 01:43:09,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 1886 transitions. [2021-11-13 01:43:09,981 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 1886 transitions. Word has length 5 [2021-11-13 01:43:09,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:09,982 INFO L470 AbstractCegarLoop]: Abstraction has 1592 states and 1886 transitions. [2021-11-13 01:43:09,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:09,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 1886 transitions. [2021-11-13 01:43:09,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:43:09,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:09,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:43:09,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:10,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:10,196 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:10,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:10,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1157601995, now seen corresponding path program 1 times [2021-11-13 01:43:10,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:10,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897658645] [2021-11-13 01:43:10,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:10,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:10,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:10,199 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:10,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:43:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:10,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:43:10,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:10,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:10,364 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:10,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897658645] [2021-11-13 01:43:10,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897658645] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:10,365 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:10,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:43:10,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535087964] [2021-11-13 01:43:10,365 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:10,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:43:10,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:43:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:10,367 INFO L87 Difference]: Start difference. First operand 1592 states and 1886 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:10,530 INFO L93 Difference]: Finished difference Result 2937 states and 3494 transitions. [2021-11-13 01:43:10,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:43:10,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 01:43:10,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:10,553 INFO L225 Difference]: With dead ends: 2937 [2021-11-13 01:43:10,553 INFO L226 Difference]: Without dead ends: 2937 [2021-11-13 01:43:10,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:10,556 INFO L933 BasicCegarLoop]: 1662 mSDtfsCounter, 2286 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.86ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.45ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:10,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2298 Valid, 3368 Invalid, 19 Unknown, 0 Unchecked, 9.86ms Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 103.45ms Time] [2021-11-13 01:43:10,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2021-11-13 01:43:10,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2408. [2021-11-13 01:43:10,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 1756 states have (on average 1.9646924829157175) internal successors, (3450), 2393 states have internal predecessors, (3450), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 01:43:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3494 transitions. [2021-11-13 01:43:10,676 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3494 transitions. Word has length 6 [2021-11-13 01:43:10,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:10,677 INFO L470 AbstractCegarLoop]: Abstraction has 2408 states and 3494 transitions. [2021-11-13 01:43:10,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:10,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3494 transitions. [2021-11-13 01:43:10,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 01:43:10,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:10,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:10,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:10,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:10,894 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:10,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:10,895 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2021-11-13 01:43:10,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:10,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024999646] [2021-11-13 01:43:10,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:10,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:10,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:10,898 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:10,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:43:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:11,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:43:11,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:11,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:11,177 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:11,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024999646] [2021-11-13 01:43:11,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024999646] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:11,178 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:11,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:43:11,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836839520] [2021-11-13 01:43:11,179 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:11,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:43:11,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:11,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:43:11,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:11,181 INFO L87 Difference]: Start difference. First operand 2408 states and 3494 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:11,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:11,243 INFO L93 Difference]: Finished difference Result 2348 states and 3408 transitions. [2021-11-13 01:43:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:43:11,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-13 01:43:11,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:11,263 INFO L225 Difference]: With dead ends: 2348 [2021-11-13 01:43:11,264 INFO L226 Difference]: Without dead ends: 2348 [2021-11-13 01:43:11,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:11,265 INFO L933 BasicCegarLoop]: 1387 mSDtfsCounter, 1347 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.66ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:11,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1363 Valid, 1453 Invalid, 14 Unknown, 0 Unchecked, 4.89ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 22.66ms Time] [2021-11-13 01:43:11,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2021-11-13 01:43:11,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 2348. [2021-11-13 01:43:11,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 1720 states have (on average 1.955813953488372) internal successors, (3364), 2333 states have internal predecessors, (3364), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 01:43:11,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3408 transitions. [2021-11-13 01:43:11,351 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3408 transitions. Word has length 11 [2021-11-13 01:43:11,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:11,352 INFO L470 AbstractCegarLoop]: Abstraction has 2348 states and 3408 transitions. [2021-11-13 01:43:11,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:11,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3408 transitions. [2021-11-13 01:43:11,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 01:43:11,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:11,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:11,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:11,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:11,566 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:11,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:11,567 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2021-11-13 01:43:11,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:11,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723998084] [2021-11-13 01:43:11,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:11,568 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:11,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:11,570 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:11,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:43:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:11,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:43:11,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:11,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:11,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:11,831 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:11,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723998084] [2021-11-13 01:43:11,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723998084] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:11,832 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:11,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-13 01:43:11,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398721688] [2021-11-13 01:43:11,833 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:11,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:43:11,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:11,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:43:11,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:43:11,834 INFO L87 Difference]: Start difference. First operand 2348 states and 3408 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:12,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:12,038 INFO L93 Difference]: Finished difference Result 2320 states and 3352 transitions. [2021-11-13 01:43:12,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:43:12,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-13 01:43:12,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:12,056 INFO L225 Difference]: With dead ends: 2320 [2021-11-13 01:43:12,057 INFO L226 Difference]: Without dead ends: 2320 [2021-11-13 01:43:12,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:43:12,058 INFO L933 BasicCegarLoop]: 1342 mSDtfsCounter, 2626 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.33ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.77ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:12,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2642 Valid, 2710 Invalid, 92 Unknown, 0 Unchecked, 10.33ms Time], IncrementalHoareTripleChecker [58 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 114.77ms Time] [2021-11-13 01:43:12,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2021-11-13 01:43:12,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2318. [2021-11-13 01:43:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1704 states have (on average 1.9401408450704225) internal successors, (3306), 2303 states have internal predecessors, (3306), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 01:43:12,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3350 transitions. [2021-11-13 01:43:12,147 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3350 transitions. Word has length 13 [2021-11-13 01:43:12,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:12,148 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 3350 transitions. [2021-11-13 01:43:12,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:12,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3350 transitions. [2021-11-13 01:43:12,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 01:43:12,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:12,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:12,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:12,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:12,364 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:12,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:12,365 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2021-11-13 01:43:12,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:12,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394635741] [2021-11-13 01:43:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:12,366 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:12,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:12,368 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:12,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:43:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:12,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:43:12,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:12,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 01:43:12,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:12,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:12,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:12,871 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:12,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394635741] [2021-11-13 01:43:12,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394635741] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:12,872 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:12,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:43:12,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188642857] [2021-11-13 01:43:12,872 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:12,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:43:12,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:12,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:43:12,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:12,874 INFO L87 Difference]: Start difference. First operand 2318 states and 3350 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:17,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:17,086 INFO L93 Difference]: Finished difference Result 3150 states and 4376 transitions. [2021-11-13 01:43:17,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:43:17,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-13 01:43:17,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:17,106 INFO L225 Difference]: With dead ends: 3150 [2021-11-13 01:43:17,106 INFO L226 Difference]: Without dead ends: 3150 [2021-11-13 01:43:17,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:43:17,107 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 2585 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3433.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.60ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4119.17ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:17,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 1340 Invalid, 1456 Unknown, 0 Unchecked, 14.60ms Time], IncrementalHoareTripleChecker [61 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 4119.17ms Time] [2021-11-13 01:43:17,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2021-11-13 01:43:17,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 2314. [2021-11-13 01:43:17,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 1704 states have (on average 1.9354460093896713) internal successors, (3298), 2299 states have internal predecessors, (3298), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 01:43:17,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3342 transitions. [2021-11-13 01:43:17,184 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3342 transitions. Word has length 27 [2021-11-13 01:43:17,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:17,185 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 3342 transitions. [2021-11-13 01:43:17,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:17,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3342 transitions. [2021-11-13 01:43:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 01:43:17,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:17,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:17,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:17,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:17,398 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:17,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:17,399 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2021-11-13 01:43:17,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:17,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007512988] [2021-11-13 01:43:17,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:17,400 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:17,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:17,401 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:17,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 01:43:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:17,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:43:17,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:17,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 01:43:17,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:17,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:18,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:18,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:18,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007512988] [2021-11-13 01:43:18,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007512988] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:18,335 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:18,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 01:43:18,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093295643] [2021-11-13 01:43:18,335 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:18,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:43:18,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:18,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:43:18,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:43:18,337 INFO L87 Difference]: Start difference. First operand 2314 states and 3342 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:31,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:31,532 INFO L93 Difference]: Finished difference Result 2787 states and 3741 transitions. [2021-11-13 01:43:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:43:31,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-13 01:43:31,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:31,551 INFO L225 Difference]: With dead ends: 2787 [2021-11-13 01:43:31,551 INFO L226 Difference]: Without dead ends: 2787 [2021-11-13 01:43:31,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:43:31,552 INFO L933 BasicCegarLoop]: 1009 mSDtfsCounter, 1283 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 3025 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11511.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.98ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12956.48ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:31,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 3278 Invalid, 3063 Unknown, 0 Unchecked, 20.98ms Time], IncrementalHoareTripleChecker [38 Valid, 3025 Invalid, 0 Unknown, 0 Unchecked, 12956.48ms Time] [2021-11-13 01:43:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2021-11-13 01:43:31,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2310. [2021-11-13 01:43:31,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2310 states, 1704 states have (on average 1.9307511737089202) internal successors, (3290), 2295 states have internal predecessors, (3290), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 01:43:31,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3334 transitions. [2021-11-13 01:43:31,621 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3334 transitions. Word has length 27 [2021-11-13 01:43:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:31,621 INFO L470 AbstractCegarLoop]: Abstraction has 2310 states and 3334 transitions. [2021-11-13 01:43:31,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:31,622 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3334 transitions. [2021-11-13 01:43:31,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-13 01:43:31,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:31,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:31,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:31,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:31,837 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:31,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:31,837 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2021-11-13 01:43:31,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:31,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633572429] [2021-11-13 01:43:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:31,838 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:31,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:31,839 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:31,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 01:43:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:32,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:43:32,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:32,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:32,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:32,349 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:32,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633572429] [2021-11-13 01:43:32,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633572429] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:32,349 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:32,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 01:43:32,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933752383] [2021-11-13 01:43:32,350 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:32,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:43:32,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:32,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:43:32,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:32,351 INFO L87 Difference]: Start difference. First operand 2310 states and 3334 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:32,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:32,442 INFO L93 Difference]: Finished difference Result 2298 states and 3314 transitions. [2021-11-13 01:43:32,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:43:32,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-11-13 01:43:32,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:32,459 INFO L225 Difference]: With dead ends: 2298 [2021-11-13 01:43:32,460 INFO L226 Difference]: Without dead ends: 2298 [2021-11-13 01:43:32,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:43:32,463 INFO L933 BasicCegarLoop]: 1336 mSDtfsCounter, 1294 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.65ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.61ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:32,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1310 Valid, 2688 Invalid, 43 Unknown, 0 Unchecked, 4.65ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 54.61ms Time] [2021-11-13 01:43:32,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2021-11-13 01:43:32,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 2298. [2021-11-13 01:43:32,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 1692 states have (on average 1.9326241134751774) internal successors, (3270), 2283 states have internal predecessors, (3270), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 01:43:32,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 3314 transitions. [2021-11-13 01:43:32,521 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 3314 transitions. Word has length 42 [2021-11-13 01:43:32,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:32,523 INFO L470 AbstractCegarLoop]: Abstraction has 2298 states and 3314 transitions. [2021-11-13 01:43:32,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:32,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 3314 transitions. [2021-11-13 01:43:32,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-13 01:43:32,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:32,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:32,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:32,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:32,745 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:32,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:32,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2021-11-13 01:43:32,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:32,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113752252] [2021-11-13 01:43:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:32,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:32,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:32,747 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:32,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 01:43:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:32,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:43:32,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:33,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:33,769 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:33,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113752252] [2021-11-13 01:43:33,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113752252] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:33,770 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:33,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:43:33,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596688146] [2021-11-13 01:43:33,770 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:33,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:43:33,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:33,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:43:33,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:43:33,772 INFO L87 Difference]: Start difference. First operand 2298 states and 3314 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:34,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:34,081 INFO L93 Difference]: Finished difference Result 2309 states and 3163 transitions. [2021-11-13 01:43:34,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:43:34,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2021-11-13 01:43:34,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:34,094 INFO L225 Difference]: With dead ends: 2309 [2021-11-13 01:43:34,094 INFO L226 Difference]: Without dead ends: 2309 [2021-11-13 01:43:34,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:43:34,095 INFO L933 BasicCegarLoop]: 1415 mSDtfsCounter, 269 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 236.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.67ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 278.35ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:34,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 2626 Invalid, 97 Unknown, 0 Unchecked, 3.67ms Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 278.35ms Time] [2021-11-13 01:43:34,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2021-11-13 01:43:34,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2114. [2021-11-13 01:43:34,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2114 states, 1508 states have (on average 1.9330238726790452) internal successors, (2915), 2099 states have internal predecessors, (2915), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 01:43:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 2959 transitions. [2021-11-13 01:43:34,146 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 2959 transitions. Word has length 50 [2021-11-13 01:43:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:34,147 INFO L470 AbstractCegarLoop]: Abstraction has 2114 states and 2959 transitions. [2021-11-13 01:43:34,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:34,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 2959 transitions. [2021-11-13 01:43:34,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-13 01:43:34,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:34,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:34,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:34,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:34,366 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:34,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:34,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2021-11-13 01:43:34,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:34,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105312873] [2021-11-13 01:43:34,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:34,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:34,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:34,372 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:34,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 01:43:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:34,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:43:34,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:34,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 01:43:34,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 01:43:35,451 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 01:43:35,452 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 26 treesize of output 28 [2021-11-13 01:43:35,462 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 01:43:35,462 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 25 treesize of output 21 [2021-11-13 01:43:35,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:35,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:40,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:40,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105312873] [2021-11-13 01:43:40,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105312873] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:40,492 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:40,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 01:43:40,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100379172] [2021-11-13 01:43:40,493 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:40,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:43:40,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:40,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:43:40,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-13 01:43:40,496 INFO L87 Difference]: Start difference. First operand 2114 states and 2959 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:49,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:49,068 INFO L93 Difference]: Finished difference Result 2820 states and 3599 transitions. [2021-11-13 01:43:49,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:43:49,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 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 53 [2021-11-13 01:43:49,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:49,084 INFO L225 Difference]: With dead ends: 2820 [2021-11-13 01:43:49,085 INFO L226 Difference]: Without dead ends: 2820 [2021-11-13 01:43:49,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-13 01:43:49,086 INFO L933 BasicCegarLoop]: 909 mSDtfsCounter, 1855 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7258.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.54ms SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1570 IncrementalHoareTripleChecker+Unchecked, 8450.89ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:49,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1862 Valid, 1996 Invalid, 3374 Unknown, 0 Unchecked, 20.54ms Time], IncrementalHoareTripleChecker [99 Valid, 1705 Invalid, 0 Unknown, 1570 Unchecked, 8450.89ms Time] [2021-11-13 01:43:49,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2021-11-13 01:43:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2209. [2021-11-13 01:43:49,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1635 states have (on average 1.8862385321100918) internal successors, (3084), 2191 states have internal predecessors, (3084), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-13 01:43:49,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3134 transitions. [2021-11-13 01:43:49,154 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3134 transitions. Word has length 53 [2021-11-13 01:43:49,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:49,155 INFO L470 AbstractCegarLoop]: Abstraction has 2209 states and 3134 transitions. [2021-11-13 01:43:49,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:49,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3134 transitions. [2021-11-13 01:43:49,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-13 01:43:49,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:49,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:49,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:49,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:49,375 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:49,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:49,375 INFO L85 PathProgramCache]: Analyzing trace with hash -61627503, now seen corresponding path program 1 times [2021-11-13 01:43:49,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:49,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529383269] [2021-11-13 01:43:49,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:49,376 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:49,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:49,379 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:49,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 01:43:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:49,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:43:49,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:49,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:49,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:50,062 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 8 treesize of output 6 [2021-11-13 01:43:50,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:50,432 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:50,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529383269] [2021-11-13 01:43:50,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529383269] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:50,432 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:50,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 01:43:50,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476561070] [2021-11-13 01:43:50,433 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:50,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:43:50,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:50,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:43:50,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:43:50,435 INFO L87 Difference]: Start difference. First operand 2209 states and 3134 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:54,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:54,251 INFO L93 Difference]: Finished difference Result 2207 states and 3130 transitions. [2021-11-13 01:43:54,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:43:54,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-13 01:43:54,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:54,264 INFO L225 Difference]: With dead ends: 2207 [2021-11-13 01:43:54,264 INFO L226 Difference]: Without dead ends: 2207 [2021-11-13 01:43:54,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:43:54,265 INFO L933 BasicCegarLoop]: 775 mSDtfsCounter, 2930 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3224.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2936 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.41ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3766.34ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:54,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2936 Valid, 1462 Invalid, 755 Unknown, 0 Unchecked, 11.41ms Time], IncrementalHoareTripleChecker [41 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 3766.34ms Time] [2021-11-13 01:43:54,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2021-11-13 01:43:54,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2021-11-13 01:43:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1635 states have (on average 1.8837920489296636) internal successors, (3080), 2189 states have internal predecessors, (3080), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-13 01:43:54,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3130 transitions. [2021-11-13 01:43:54,319 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3130 transitions. Word has length 55 [2021-11-13 01:43:54,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:54,320 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 3130 transitions. [2021-11-13 01:43:54,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:43:54,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3130 transitions. [2021-11-13 01:43:54,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 01:43:54,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:54,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:54,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:54,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:54,537 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:43:54,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:54,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2021-11-13 01:43:54,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:54,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945533908] [2021-11-13 01:43:54,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:54,538 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:54,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:54,540 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:54,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 01:43:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:54,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:43:54,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:54,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 01:43:54,967 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 22 treesize of output 18 [2021-11-13 01:43:55,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-13 01:43:55,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:55,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:43:55,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:55,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945533908] [2021-11-13 01:43:55,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945533908] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:55,202 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:55,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 01:43:55,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538751238] [2021-11-13 01:43:55,203 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:55,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:43:55,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:55,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:43:55,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:43:55,204 INFO L87 Difference]: Start difference. First operand 2207 states and 3130 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:44:00,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:44:00,321 INFO L93 Difference]: Finished difference Result 2206 states and 3128 transitions. [2021-11-13 01:44:00,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:44:00,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-13 01:44:00,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:44:00,347 INFO L225 Difference]: With dead ends: 2206 [2021-11-13 01:44:00,347 INFO L226 Difference]: Without dead ends: 2206 [2021-11-13 01:44:00,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:44:00,349 INFO L933 BasicCegarLoop]: 1306 mSDtfsCounter, 4 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4282.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.12ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5021.99ms IncrementalHoareTripleChecker+Time [2021-11-13 01:44:00,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3324 Invalid, 1906 Unknown, 0 Unchecked, 14.12ms Time], IncrementalHoareTripleChecker [1 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 5021.99ms Time] [2021-11-13 01:44:00,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2021-11-13 01:44:00,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2206. [2021-11-13 01:44:00,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1635 states have (on average 1.8825688073394495) internal successors, (3078), 2188 states have internal predecessors, (3078), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-13 01:44:00,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3128 transitions. [2021-11-13 01:44:00,432 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3128 transitions. Word has length 58 [2021-11-13 01:44:00,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:44:00,432 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 3128 transitions. [2021-11-13 01:44:00,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:44:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3128 transitions. [2021-11-13 01:44:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 01:44:00,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:44:00,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:44:00,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 01:44:00,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:44:00,636 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:44:00,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:44:00,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2021-11-13 01:44:00,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:44:00,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395986455] [2021-11-13 01:44:00,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:44:00,637 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:44:00,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:44:00,639 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:44:00,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 01:44:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:00,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:44:00,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:01,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 01:44:01,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 01:44:01,091 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 19 treesize of output 15 [2021-11-13 01:44:01,172 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 39 treesize of output 27 [2021-11-13 01:44:01,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-13 01:44:01,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:01,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:01,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:01,529 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:44:01,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395986455] [2021-11-13 01:44:01,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395986455] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:44:01,529 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:44:01,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 01:44:01,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736782825] [2021-11-13 01:44:01,530 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:44:01,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:44:01,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:44:01,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:44:01,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:44:01,531 INFO L87 Difference]: Start difference. First operand 2206 states and 3128 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:44:14,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:44:14,837 INFO L93 Difference]: Finished difference Result 2205 states and 3126 transitions. [2021-11-13 01:44:14,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:44:14,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-13 01:44:14,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:44:14,842 INFO L225 Difference]: With dead ends: 2205 [2021-11-13 01:44:14,843 INFO L226 Difference]: Without dead ends: 2205 [2021-11-13 01:44:14,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:44:14,843 INFO L933 BasicCegarLoop]: 1306 mSDtfsCounter, 4 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11913.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3263 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.60ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13179.09ms IncrementalHoareTripleChecker+Time [2021-11-13 01:44:14,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3263 Invalid, 1966 Unknown, 0 Unchecked, 15.60ms Time], IncrementalHoareTripleChecker [2 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 13179.09ms Time] [2021-11-13 01:44:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2021-11-13 01:44:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2205. [2021-11-13 01:44:14,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1633 states have (on average 1.883649724433558) internal successors, (3076), 2187 states have internal predecessors, (3076), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-13 01:44:14,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3126 transitions. [2021-11-13 01:44:14,884 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3126 transitions. Word has length 58 [2021-11-13 01:44:14,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:44:14,884 INFO L470 AbstractCegarLoop]: Abstraction has 2205 states and 3126 transitions. [2021-11-13 01:44:14,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:44:14,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3126 transitions. [2021-11-13 01:44:14,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 01:44:14,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:44:14,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:44:14,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-13 01:44:15,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:44:15,102 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:44:15,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:44:15,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1427434238, now seen corresponding path program 1 times [2021-11-13 01:44:15,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:44:15,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258893541] [2021-11-13 01:44:15,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:44:15,104 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:44:15,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:44:15,105 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:44:15,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 01:44:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:15,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:44:15,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:15,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:15,785 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:44:15,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258893541] [2021-11-13 01:44:15,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258893541] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:44:15,785 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:44:15,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 01:44:15,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501408143] [2021-11-13 01:44:15,786 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:44:15,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:44:15,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:44:15,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:44:15,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:44:15,787 INFO L87 Difference]: Start difference. First operand 2205 states and 3126 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 01:44:15,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:44:15,959 INFO L93 Difference]: Finished difference Result 2215 states and 3143 transitions. [2021-11-13 01:44:15,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:44:15,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 66 [2021-11-13 01:44:15,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:44:15,976 INFO L225 Difference]: With dead ends: 2215 [2021-11-13 01:44:15,977 INFO L226 Difference]: Without dead ends: 2215 [2021-11-13 01:44:15,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:44:15,978 INFO L933 BasicCegarLoop]: 1304 mSDtfsCounter, 7 mSDsluCounter, 5190 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6494 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.43ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:44:15,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6494 Invalid, 62 Unknown, 0 Unchecked, 5.43ms Time], IncrementalHoareTripleChecker [10 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 125.00ms Time] [2021-11-13 01:44:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2021-11-13 01:44:16,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2215. [2021-11-13 01:44:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1641 states have (on average 1.881779402803169) internal successors, (3088), 2196 states have internal predecessors, (3088), 25 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (30), 16 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-13 01:44:16,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 3143 transitions. [2021-11-13 01:44:16,052 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 3143 transitions. Word has length 66 [2021-11-13 01:44:16,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:44:16,053 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 3143 transitions. [2021-11-13 01:44:16,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 01:44:16,054 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 3143 transitions. [2021-11-13 01:44:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-13 01:44:16,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:44:16,055 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:44:16,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 01:44:16,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:44:16,274 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:44:16,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:44:16,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1761910302, now seen corresponding path program 1 times [2021-11-13 01:44:16,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:44:16,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191488121] [2021-11-13 01:44:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:44:16,275 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:44:16,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:44:16,276 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:44:16,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 01:44:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:16,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:44:16,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:16,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:16,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:17,078 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:44:17,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191488121] [2021-11-13 01:44:17,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191488121] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:44:17,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1204854285] [2021-11-13 01:44:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:44:17,079 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:44:17,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:44:17,082 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:44:17,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-13 01:44:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:17,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:44:17,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:17,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:17,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1204854285] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:44:17,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878861196] [2021-11-13 01:44:17,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:44:17,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:44:17,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:44:17,738 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:44:17,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-13 01:44:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:17,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:44:17,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:18,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:18,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:18,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878861196] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:44:18,460 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 01:44:18,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-13 01:44:18,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260797713] [2021-11-13 01:44:18,461 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 01:44:18,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 01:44:18,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:44:18,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 01:44:18,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-13 01:44:18,463 INFO L87 Difference]: Start difference. First operand 2215 states and 3143 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 01:44:19,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:44:19,153 INFO L93 Difference]: Finished difference Result 2229 states and 3164 transitions. [2021-11-13 01:44:19,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 01:44:19,154 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 68 [2021-11-13 01:44:19,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:44:19,163 INFO L225 Difference]: With dead ends: 2229 [2021-11-13 01:44:19,163 INFO L226 Difference]: Without dead ends: 2223 [2021-11-13 01:44:19,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-13 01:44:19,165 INFO L933 BasicCegarLoop]: 1304 mSDtfsCounter, 34 mSDsluCounter, 6491 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 297.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 7795 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.84ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 346.31ms IncrementalHoareTripleChecker+Time [2021-11-13 01:44:19,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 7795 Invalid, 189 Unknown, 0 Unchecked, 6.84ms Time], IncrementalHoareTripleChecker [44 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 346.31ms Time] [2021-11-13 01:44:19,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2021-11-13 01:44:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2221. [2021-11-13 01:44:19,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 1647 states have (on average 1.8791742562234366) internal successors, (3095), 2202 states have internal predecessors, (3095), 25 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (30), 16 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-13 01:44:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3150 transitions. [2021-11-13 01:44:19,212 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3150 transitions. Word has length 68 [2021-11-13 01:44:19,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:44:19,212 INFO L470 AbstractCegarLoop]: Abstraction has 2221 states and 3150 transitions. [2021-11-13 01:44:19,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 01:44:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3150 transitions. [2021-11-13 01:44:19,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 01:44:19,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:44:19,214 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:44:19,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-13 01:44:19,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-13 01:44:19,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2021-11-13 01:44:19,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 01:44:19,830 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-13 01:44:19,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:44:19,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1602933666, now seen corresponding path program 2 times [2021-11-13 01:44:19,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:44:19,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806210804] [2021-11-13 01:44:19,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 01:44:19,831 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:44:19,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:44:19,832 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:44:19,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-13 01:44:20,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 01:44:20,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 01:44:20,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 01:44:20,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:20,650 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:20,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:21,463 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:21,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:44:21,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806210804] [2021-11-13 01:44:21,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806210804] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:44:21,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1994269024] [2021-11-13 01:44:21,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 01:44:21,464 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:44:21,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:44:21,470 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:44:21,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-13 01:44:22,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 01:44:22,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 01:44:22,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 01:44:22,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:22,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:44:23,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1994269024] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:44:23,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402855563] [2021-11-13 01:44:23,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 01:44:23,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:44:23,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:44:23,162 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:44:23,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017bbb0b-1d5d-42a1-bbc3-934a48166897/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-13 01:44:34,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 01:44:34,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 01:44:34,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 01:44:34,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:34,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 01:44:35,104 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 01:44:35,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-11-13 01:44:35,171 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 18 treesize of output 14 [2021-11-13 01:46:37,462 WARN L227 SmtUtils]: Spent 37.98s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 01:46:37,464 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-13 01:46:37,464 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 6 case distinctions, treesize of input 75 treesize of output 79 [2021-11-13 01:46:38,297 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-13 01:46:38,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 38 [2021-11-13 01:46:38,427 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:46:38,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:46:41,495 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-13 01:46:41,496 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 60 treesize of output 59 [2021-11-13 01:53:06,472 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-13 01:53:06,472 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 113 treesize of output 112 [2021-11-13 01:53:10,560 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) is different from false [2021-11-13 01:53:36,761 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:53:36,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402855563] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:53:36,762 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 01:53:36,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-13 01:53:36,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869252657] [2021-11-13 01:53:36,763 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 01:53:36,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-13 01:53:36,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:53:36,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-13 01:53:36,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1520, Unknown=213, NotChecked=84, Total=1980 [2021-11-13 01:53:36,768 INFO L87 Difference]: Start difference. First operand 2221 states and 3150 transitions. Second operand has 45 states, 43 states have (on average 4.976744186046512) internal successors, (214), 43 states have internal predecessors, (214), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-13 01:53:41,186 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-13 01:55:00,083 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_118|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr322|)) is different from false [2021-11-13 01:55:37,744 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr322|)) is different from false [2021-11-13 01:55:39,779 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr322|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-13 01:55:41,805 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))))) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr322|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-13 01:55:43,826 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr322|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr322|) |c_#Ultimate.C_memset_#amount|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_87| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-13 01:55:45,844 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr322|) |c_#Ultimate.C_memset_#amount|) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr322|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-13 01:55:47,861 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (not (bvult (_ bv6 32) |c_#Ultimate.C_memset_#amount|)) (bvult (_ bv5 32) |c_#Ultimate.C_memset_#amount|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false