./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs --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 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:39:11,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:39:11,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:39:11,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:39:11,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:39:11,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:39:11,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:39:11,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:39:11,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:39:11,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:39:11,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:39:11,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:39:11,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:39:11,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:39:11,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:39:11,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:39:11,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:39:11,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:39:11,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:39:11,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:39:11,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:39:11,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:39:11,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:39:11,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:39:11,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:39:11,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:39:11,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:39:11,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:39:11,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:39:11,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:39:11,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:39:11,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:39:11,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:39:11,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:39:11,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:39:11,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:39:11,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:39:11,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:39:11,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:39:11,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:39:11,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:39:11,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-19 13:39:11,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:39:11,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:39:11,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:39:11,826 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:39:11,826 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:39:11,826 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:39:11,827 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:39:11,827 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:39:11,827 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:39:11,828 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:39:11,829 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:39:11,829 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:39:11,830 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:39:11,830 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:39:11,830 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:39:11,831 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:39:11,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 13:39:11,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 13:39:11,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:39:11,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:39:11,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:39:11,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:39:11,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:39:11,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:39:11,834 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 13:39:11,834 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 13:39:11,836 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 13:39:11,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:39:11,837 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:39:11,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:39:11,838 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:39:11,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:39:11,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:39:11,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:39:11,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:39:11,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:39:11,840 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:39:11,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:39:11,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:39:11,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:39:11,841 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_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 [2021-11-19 13:39:12,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:39:12,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:39:12,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:39:12,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:39:12,290 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:39:12,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2021-11-19 13:39:12,401 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/data/54739407e/a51b062ff80342b6bb7a4522da39feb7/FLAG3eaa2c79f [2021-11-19 13:39:13,174 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:39:13,175 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2021-11-19 13:39:13,206 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/data/54739407e/a51b062ff80342b6bb7a4522da39feb7/FLAG3eaa2c79f [2021-11-19 13:39:13,374 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/data/54739407e/a51b062ff80342b6bb7a4522da39feb7 [2021-11-19 13:39:13,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:39:13,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:39:13,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:39:13,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:39:13,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:39:13,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:39:13" (1/1) ... [2021-11-19 13:39:13,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c18e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:13, skipping insertion in model container [2021-11-19 13:39:13,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:39:13" (1/1) ... [2021-11-19 13:39:13,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:39:13,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:39:14,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i[33021,33034] [2021-11-19 13:39:14,212 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:39:14,230 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:39:14,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b50735c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:14, skipping insertion in model container [2021-11-19 13:39:14,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:39:14,232 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:39:14,235 INFO L158 Benchmark]: Toolchain (without parser) took 853.53ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 71.5MB in the beginning and 111.5MB in the end (delta: -40.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 13:39:14,236 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 104.9MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:39:14,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.76ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 71.3MB in the beginning and 111.5MB in the end (delta: -40.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 13:39:14,241 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 104.9MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.76ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 71.3MB in the beginning and 111.5MB in the end (delta: -40.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 751]: 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_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs --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 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:39:17,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:39:17,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:39:17,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:39:17,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:39:17,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:39:17,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:39:17,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:39:17,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:39:17,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:39:17,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:39:17,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:39:17,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:39:17,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:39:17,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:39:17,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:39:17,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:39:17,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:39:17,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:39:17,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:39:17,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:39:17,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:39:17,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:39:17,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:39:17,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:39:17,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:39:17,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:39:17,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:39:17,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:39:17,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:39:17,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:39:17,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:39:17,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:39:17,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:39:17,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:39:17,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:39:17,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:39:17,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:39:17,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:39:17,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:39:17,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:39:17,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-19 13:39:17,303 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:39:17,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:39:17,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:39:17,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:39:17,306 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:39:17,306 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:39:17,306 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:39:17,306 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:39:17,307 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:39:17,307 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:39:17,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 13:39:17,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 13:39:17,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:39:17,311 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:39:17,311 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:39:17,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:39:17,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:39:17,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:39:17,312 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 13:39:17,312 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 13:39:17,312 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 13:39:17,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:39:17,313 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:39:17,313 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:39:17,313 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:39:17,314 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:39:17,314 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:39:17,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:39:17,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:39:17,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:39:17,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:39:17,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:39:17,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:39:17,316 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:39:17,316 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:39:17,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:39:17,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:39:17,317 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_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 [2021-11-19 13:39:17,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:39:17,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:39:17,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:39:17,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:39:17,823 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:39:17,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2021-11-19 13:39:17,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/data/f57562d31/03a4ef41211143f1a3200a1cb9fd7e2e/FLAGf05c28f26 [2021-11-19 13:39:18,793 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:39:18,793 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2021-11-19 13:39:18,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/data/f57562d31/03a4ef41211143f1a3200a1cb9fd7e2e/FLAGf05c28f26 [2021-11-19 13:39:18,951 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/data/f57562d31/03a4ef41211143f1a3200a1cb9fd7e2e [2021-11-19 13:39:18,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:39:18,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:39:18,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:39:18,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:39:18,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:39:18,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:39:18" (1/1) ... [2021-11-19 13:39:18,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db926a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:18, skipping insertion in model container [2021-11-19 13:39:18,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:39:18" (1/1) ... [2021-11-19 13:39:18,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:39:19,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:39:19,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i[33021,33034] [2021-11-19 13:39:19,782 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:39:19,797 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:39:19,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:39:19,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i[33021,33034] [2021-11-19 13:39:19,974 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:39:19,986 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:39:20,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i[33021,33034] [2021-11-19 13:39:20,138 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:39:20,195 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:39:20,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20 WrapperNode [2021-11-19 13:39:20,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:39:20,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:39:20,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:39:20,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:39:20,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (1/1) ... [2021-11-19 13:39:20,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (1/1) ... [2021-11-19 13:39:20,372 INFO L137 Inliner]: procedures = 180, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 792 [2021-11-19 13:39:20,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:39:20,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:39:20,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:39:20,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:39:20,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (1/1) ... [2021-11-19 13:39:20,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (1/1) ... [2021-11-19 13:39:20,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (1/1) ... [2021-11-19 13:39:20,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (1/1) ... [2021-11-19 13:39:20,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (1/1) ... [2021-11-19 13:39:20,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (1/1) ... [2021-11-19 13:39:20,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (1/1) ... [2021-11-19 13:39:20,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:39:20,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:39:20,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:39:20,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:39:20,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (1/1) ... [2021-11-19 13:39:20,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:39:20,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:39:20,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:39:20,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:39:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:39:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:39:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 13:39:20,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 13:39:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:39:20,645 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:39:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:39:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:39:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:39:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:39:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:39:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:39:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:39:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:39:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:39:20,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:39:20,859 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:39:20,861 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:39:20,866 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 13:39:25,741 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:39:25,775 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:39:25,783 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-19 13:39:25,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:39:25 BoogieIcfgContainer [2021-11-19 13:39:25,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:39:25,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:39:25,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:39:25,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:39:25,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:39:18" (1/3) ... [2021-11-19 13:39:25,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27cd1c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:39:25, skipping insertion in model container [2021-11-19 13:39:25,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:39:20" (2/3) ... [2021-11-19 13:39:25,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27cd1c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:39:25, skipping insertion in model container [2021-11-19 13:39:25,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:39:25" (3/3) ... [2021-11-19 13:39:25,808 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-2.i [2021-11-19 13:39:25,818 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:39:25,820 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 435 error locations. [2021-11-19 13:39:25,894 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:39:25,903 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:39:25,904 INFO L340 AbstractCegarLoop]: Starting to check reachability of 435 error locations. [2021-11-19 13:39:25,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 867 states, 419 states have (on average 2.252983293556086) internal successors, (944), 861 states have internal predecessors, (944), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-19 13:39:25,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:39:25,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:25,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:39:25,973 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:25,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:25,986 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2021-11-19 13:39:26,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:26,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890562043] [2021-11-19 13:39:26,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:26,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:26,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:26,009 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:26,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:39:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:26,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:39:26,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:26,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:26,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:26,249 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:26,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890562043] [2021-11-19 13:39:26,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890562043] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:26,250 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:26,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:39:26,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410051432] [2021-11-19 13:39:26,254 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:26,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:39:26,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:26,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:39:26,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:39:26,311 INFO L87 Difference]: Start difference. First operand has 867 states, 419 states have (on average 2.252983293556086) internal successors, (944), 861 states have internal predecessors, (944), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) 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) [2021-11-19 13:39:26,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:26,413 INFO L93 Difference]: Finished difference Result 858 states and 916 transitions. [2021-11-19 13:39:26,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:39:26,416 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 [2021-11-19 13:39:26,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:26,447 INFO L225 Difference]: With dead ends: 858 [2021-11-19 13:39:26,447 INFO L226 Difference]: Without dead ends: 856 [2021-11-19 13:39:26,449 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 [2021-11-19 13:39:26,454 INFO L933 BasicCegarLoop]: 916 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:26,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:39:26,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2021-11-19 13:39:26,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 856. [2021-11-19 13:39:26,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 414 states have (on average 2.1449275362318843) internal successors, (888), 850 states have internal predecessors, (888), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-19 13:39:26,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 914 transitions. [2021-11-19 13:39:26,660 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 914 transitions. Word has length 5 [2021-11-19 13:39:26,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:26,660 INFO L470 AbstractCegarLoop]: Abstraction has 856 states and 914 transitions. [2021-11-19 13:39:26,661 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) [2021-11-19 13:39:26,661 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 914 transitions. [2021-11-19 13:39:26,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:39:26,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:26,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:39:26,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:26,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:26,865 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:26,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:26,866 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2021-11-19 13:39:26,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:26,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907975425] [2021-11-19 13:39:26,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:26,868 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:26,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:26,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:26,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:39:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:27,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:39:27,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:27,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:39:27,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:27,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:27,135 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:27,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907975425] [2021-11-19 13:39:27,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907975425] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:27,136 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:27,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:39:27,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999627762] [2021-11-19 13:39:27,137 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:27,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:39:27,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:27,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:39:27,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:39:27,141 INFO L87 Difference]: Start difference. First operand 856 states and 914 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) [2021-11-19 13:39:29,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:29,282 INFO L93 Difference]: Finished difference Result 814 states and 873 transitions. [2021-11-19 13:39:29,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:39:29,282 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 [2021-11-19 13:39:29,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:29,291 INFO L225 Difference]: With dead ends: 814 [2021-11-19 13:39:29,291 INFO L226 Difference]: Without dead ends: 814 [2021-11-19 13:39:29,292 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 [2021-11-19 13:39:29,294 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 596 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:29,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 662 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 13:39:29,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2021-11-19 13:39:29,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 807. [2021-11-19 13:39:29,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 414 states have (on average 2.026570048309179) internal successors, (839), 801 states have internal predecessors, (839), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-19 13:39:29,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 865 transitions. [2021-11-19 13:39:29,341 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 865 transitions. Word has length 5 [2021-11-19 13:39:29,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:29,341 INFO L470 AbstractCegarLoop]: Abstraction has 807 states and 865 transitions. [2021-11-19 13:39:29,342 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) [2021-11-19 13:39:29,342 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 865 transitions. [2021-11-19 13:39:29,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:39:29,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:29,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:39:29,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:29,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:29,556 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:29,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:29,557 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2021-11-19 13:39:29,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:29,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473859469] [2021-11-19 13:39:29,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:29,558 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:29,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:29,559 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:29,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:39:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:29,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:39:29,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:29,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:39:29,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:29,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:29,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:29,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:29,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473859469] [2021-11-19 13:39:29,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473859469] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:29,824 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:29,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 13:39:29,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205117593] [2021-11-19 13:39:29,824 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:29,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:39:29,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:29,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:39:29,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:39:29,826 INFO L87 Difference]: Start difference. First operand 807 states and 865 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) [2021-11-19 13:39:34,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:34,392 INFO L93 Difference]: Finished difference Result 880 states and 942 transitions. [2021-11-19 13:39:34,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:39:34,393 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 [2021-11-19 13:39:34,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:34,399 INFO L225 Difference]: With dead ends: 880 [2021-11-19 13:39:34,400 INFO L226 Difference]: Without dead ends: 880 [2021-11-19 13:39:34,400 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 [2021-11-19 13:39:34,402 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 323 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:34,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1276 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-19 13:39:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2021-11-19 13:39:34,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 829. [2021-11-19 13:39:34,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 446 states have (on average 2.006726457399103) internal successors, (895), 823 states have internal predecessors, (895), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-19 13:39:34,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 921 transitions. [2021-11-19 13:39:34,440 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 921 transitions. Word has length 5 [2021-11-19 13:39:34,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:34,440 INFO L470 AbstractCegarLoop]: Abstraction has 829 states and 921 transitions. [2021-11-19 13:39:34,441 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) [2021-11-19 13:39:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 921 transitions. [2021-11-19 13:39:34,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 13:39:34,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:34,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 13:39:34,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 13:39:34,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:34,657 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr322REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:34,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1156735106, now seen corresponding path program 1 times [2021-11-19 13:39:34,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:34,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096336298] [2021-11-19 13:39:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:34,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:34,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:34,662 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:34,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:39:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:34,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:39:34,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:34,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:34,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:34,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:34,831 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:34,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096336298] [2021-11-19 13:39:34,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096336298] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:34,838 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:34,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:39:34,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876325604] [2021-11-19 13:39:34,843 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:34,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:39:34,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:34,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:39:34,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:39:34,845 INFO L87 Difference]: Start difference. First operand 829 states and 921 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) [2021-11-19 13:39:34,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:34,997 INFO L93 Difference]: Finished difference Result 1411 states and 1564 transitions. [2021-11-19 13:39:34,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:39:34,998 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 [2021-11-19 13:39:34,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:35,008 INFO L225 Difference]: With dead ends: 1411 [2021-11-19 13:39:35,009 INFO L226 Difference]: Without dead ends: 1411 [2021-11-19 13:39:35,009 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 [2021-11-19 13:39:35,011 INFO L933 BasicCegarLoop]: 1076 mSDtfsCounter, 1485 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:35,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 1922 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:39:35,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2021-11-19 13:39:35,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1151. [2021-11-19 13:39:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 768 states have (on average 1.9947916666666667) internal successors, (1532), 1142 states have internal predecessors, (1532), 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) [2021-11-19 13:39:35,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1564 transitions. [2021-11-19 13:39:35,058 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1564 transitions. Word has length 6 [2021-11-19 13:39:35,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:35,058 INFO L470 AbstractCegarLoop]: Abstraction has 1151 states and 1564 transitions. [2021-11-19 13:39:35,059 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) [2021-11-19 13:39:35,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1564 transitions. [2021-11-19 13:39:35,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 13:39:35,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:35,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:35,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:35,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:35,274 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:35,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:35,275 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2021-11-19 13:39:35,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:35,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147065182] [2021-11-19 13:39:35,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:35,276 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:35,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:35,282 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:35,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:39:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:35,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:39:35,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:35,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:35,501 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:35,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147065182] [2021-11-19 13:39:35,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147065182] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:35,501 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:35,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:39:35,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998707160] [2021-11-19 13:39:35,502 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:35,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:39:35,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:35,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:39:35,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:39:35,503 INFO L87 Difference]: Start difference. First operand 1151 states and 1564 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) [2021-11-19 13:39:35,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:35,601 INFO L93 Difference]: Finished difference Result 1091 states and 1478 transitions. [2021-11-19 13:39:35,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:39:35,602 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 [2021-11-19 13:39:35,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:35,610 INFO L225 Difference]: With dead ends: 1091 [2021-11-19 13:39:35,610 INFO L226 Difference]: Without dead ends: 1091 [2021-11-19 13:39:35,611 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 [2021-11-19 13:39:35,612 INFO L933 BasicCegarLoop]: 807 mSDtfsCounter, 1546 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:35,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 837 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:39:35,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2021-11-19 13:39:35,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1091. [2021-11-19 13:39:35,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 732 states have (on average 1.9754098360655739) internal successors, (1446), 1082 states have internal predecessors, (1446), 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) [2021-11-19 13:39:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1478 transitions. [2021-11-19 13:39:35,651 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1478 transitions. Word has length 11 [2021-11-19 13:39:35,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:35,651 INFO L470 AbstractCegarLoop]: Abstraction has 1091 states and 1478 transitions. [2021-11-19 13:39:35,652 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) [2021-11-19 13:39:35,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1478 transitions. [2021-11-19 13:39:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 13:39:35,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:35,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:39:35,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:35,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:35,867 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:35,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:35,867 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2021-11-19 13:39:35,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:35,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155252032] [2021-11-19 13:39:35,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:35,868 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:35,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:35,870 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:35,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:39:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:35,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:39:35,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:36,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:36,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:36,095 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:36,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155252032] [2021-11-19 13:39:36,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155252032] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:36,095 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:36,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 13:39:36,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655451956] [2021-11-19 13:39:36,096 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:36,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:39:36,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:36,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:39:36,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:39:36,097 INFO L87 Difference]: Start difference. First operand 1091 states and 1478 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) [2021-11-19 13:39:36,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:36,244 INFO L93 Difference]: Finished difference Result 1063 states and 1422 transitions. [2021-11-19 13:39:36,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:39:36,245 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 [2021-11-19 13:39:36,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:36,254 INFO L225 Difference]: With dead ends: 1063 [2021-11-19 13:39:36,254 INFO L226 Difference]: Without dead ends: 1063 [2021-11-19 13:39:36,254 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 [2021-11-19 13:39:36,256 INFO L933 BasicCegarLoop]: 762 mSDtfsCounter, 1478 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:36,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 1547 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:39:36,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2021-11-19 13:39:36,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1061. [2021-11-19 13:39:36,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 716 states have (on average 1.9385474860335195) internal successors, (1388), 1052 states have internal predecessors, (1388), 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) [2021-11-19 13:39:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1420 transitions. [2021-11-19 13:39:36,295 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1420 transitions. Word has length 13 [2021-11-19 13:39:36,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:36,295 INFO L470 AbstractCegarLoop]: Abstraction has 1061 states and 1420 transitions. [2021-11-19 13:39:36,296 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) [2021-11-19 13:39:36,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1420 transitions. [2021-11-19 13:39:36,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:39:36,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:36,297 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] [2021-11-19 13:39:36,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:36,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:36,512 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:36,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:36,512 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2021-11-19 13:39:36,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:36,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105548921] [2021-11-19 13:39:36,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:36,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:36,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:36,514 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:36,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:39:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:36,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:39:36,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:36,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:39:36,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:36,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:36,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:36,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:36,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105548921] [2021-11-19 13:39:36,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105548921] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:36,921 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:36,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:39:36,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638554477] [2021-11-19 13:39:36,922 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:36,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:39:36,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:36,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:39:36,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:39:36,924 INFO L87 Difference]: Start difference. First operand 1061 states and 1420 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) [2021-11-19 13:39:39,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:39,437 INFO L93 Difference]: Finished difference Result 1294 states and 1680 transitions. [2021-11-19 13:39:39,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:39:39,438 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 [2021-11-19 13:39:39,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:39,447 INFO L225 Difference]: With dead ends: 1294 [2021-11-19 13:39:39,448 INFO L226 Difference]: Without dead ends: 1294 [2021-11-19 13:39:39,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:39:39,449 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1151 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:39,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 718 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 13:39:39,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2021-11-19 13:39:39,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1057. [2021-11-19 13:39:39,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 716 states have (on average 1.9273743016759777) internal successors, (1380), 1048 states have internal predecessors, (1380), 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) [2021-11-19 13:39:39,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1412 transitions. [2021-11-19 13:39:39,493 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1412 transitions. Word has length 27 [2021-11-19 13:39:39,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:39,494 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 1412 transitions. [2021-11-19 13:39:39,494 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) [2021-11-19 13:39:39,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1412 transitions. [2021-11-19 13:39:39,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:39:39,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:39,496 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] [2021-11-19 13:39:39,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:39,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:39,721 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:39,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:39,722 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2021-11-19 13:39:39,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:39,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847961376] [2021-11-19 13:39:39,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:39,723 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:39,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:39,724 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:39,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:39:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:39,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:39:39,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:39,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:39:40,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:40,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:40,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:40,744 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:40,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847961376] [2021-11-19 13:39:40,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847961376] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:40,745 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:40,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 13:39:40,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401016725] [2021-11-19 13:39:40,745 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:40,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:39:40,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:40,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:39:40,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:39:40,747 INFO L87 Difference]: Start difference. First operand 1057 states and 1412 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) [2021-11-19 13:39:47,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:47,862 INFO L93 Difference]: Finished difference Result 1357 states and 1715 transitions. [2021-11-19 13:39:47,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:39:47,863 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 [2021-11-19 13:39:47,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:47,872 INFO L225 Difference]: With dead ends: 1357 [2021-11-19 13:39:47,872 INFO L226 Difference]: Without dead ends: 1357 [2021-11-19 13:39:47,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:39:47,874 INFO L933 BasicCegarLoop]: 573 mSDtfsCounter, 699 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:47,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [709 Valid, 1778 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-11-19 13:39:47,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2021-11-19 13:39:47,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1053. [2021-11-19 13:39:47,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 716 states have (on average 1.9162011173184357) internal successors, (1372), 1044 states have internal predecessors, (1372), 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) [2021-11-19 13:39:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1404 transitions. [2021-11-19 13:39:47,914 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1404 transitions. Word has length 27 [2021-11-19 13:39:47,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:47,915 INFO L470 AbstractCegarLoop]: Abstraction has 1053 states and 1404 transitions. [2021-11-19 13:39:47,915 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) [2021-11-19 13:39:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1404 transitions. [2021-11-19 13:39:47,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-19 13:39:47,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:47,917 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] [2021-11-19 13:39:47,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:48,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:48,150 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:48,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:48,150 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2021-11-19 13:39:48,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:48,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033225584] [2021-11-19 13:39:48,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:48,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:48,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:48,154 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:48,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:39:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:48,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:39:48,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:48,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:48,681 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:48,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033225584] [2021-11-19 13:39:48,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033225584] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:48,682 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:48,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 13:39:48,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970668094] [2021-11-19 13:39:48,683 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:48,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:39:48,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:39:48,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:39:48,685 INFO L87 Difference]: Start difference. First operand 1053 states and 1404 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) [2021-11-19 13:39:48,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:48,758 INFO L93 Difference]: Finished difference Result 1041 states and 1384 transitions. [2021-11-19 13:39:48,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:39:48,759 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 [2021-11-19 13:39:48,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:48,766 INFO L225 Difference]: With dead ends: 1041 [2021-11-19 13:39:48,767 INFO L226 Difference]: Without dead ends: 1041 [2021-11-19 13:39:48,767 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 [2021-11-19 13:39:48,768 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 720 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:48,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [733 Valid, 1525 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:39:48,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-11-19 13:39:48,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2021-11-19 13:39:48,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 704 states have (on average 1.9204545454545454) internal successors, (1352), 1032 states have internal predecessors, (1352), 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) [2021-11-19 13:39:48,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1384 transitions. [2021-11-19 13:39:48,801 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1384 transitions. Word has length 42 [2021-11-19 13:39:48,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:48,801 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1384 transitions. [2021-11-19 13:39:48,802 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) [2021-11-19 13:39:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1384 transitions. [2021-11-19 13:39:48,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 13:39:48,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:48,804 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] [2021-11-19 13:39:48,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:49,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:49,017 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:49,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:49,018 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2021-11-19 13:39:49,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:49,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006978976] [2021-11-19 13:39:49,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:49,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:49,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:49,021 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:49,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:39:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:49,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:39:49,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:49,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:49,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:50,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:50,162 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:50,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006978976] [2021-11-19 13:39:50,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006978976] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:50,163 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:50,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:39:50,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739632281] [2021-11-19 13:39:50,163 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:50,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:39:50,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:50,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:39:50,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:39:50,165 INFO L87 Difference]: Start difference. First operand 1041 states and 1384 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) [2021-11-19 13:39:50,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:39:50,464 INFO L93 Difference]: Finished difference Result 1186 states and 1483 transitions. [2021-11-19 13:39:50,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:39:50,465 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 [2021-11-19 13:39:50,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:39:50,472 INFO L225 Difference]: With dead ends: 1186 [2021-11-19 13:39:50,473 INFO L226 Difference]: Without dead ends: 1186 [2021-11-19 13:39:50,473 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 [2021-11-19 13:39:50,474 INFO L933 BasicCegarLoop]: 835 mSDtfsCounter, 269 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:39:50,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 1465 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:39:50,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2021-11-19 13:39:50,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 991. [2021-11-19 13:39:50,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 654 states have (on average 1.9067278287461773) internal successors, (1247), 982 states have internal predecessors, (1247), 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) [2021-11-19 13:39:50,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1279 transitions. [2021-11-19 13:39:50,504 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1279 transitions. Word has length 50 [2021-11-19 13:39:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:39:50,505 INFO L470 AbstractCegarLoop]: Abstraction has 991 states and 1279 transitions. [2021-11-19 13:39:50,505 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) [2021-11-19 13:39:50,505 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1279 transitions. [2021-11-19 13:39:50,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-19 13:39:50,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:39:50,507 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] [2021-11-19 13:39:50,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:39:50,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:39:50,721 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:39:50,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:39:50,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2021-11-19 13:39:50,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:39:50,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734728822] [2021-11-19 13:39:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:39:50,723 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:39:50,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:39:50,724 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:39:50,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:39:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:51,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:39:51,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:51,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:39:51,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:39:51,863 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 13:39:51,864 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 24 treesize of output 26 [2021-11-19 13:39:51,874 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 13:39:51,875 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 23 treesize of output 19 [2021-11-19 13:39:51,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:51,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:57,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:57,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:39:57,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734728822] [2021-11-19 13:39:57,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734728822] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:39:57,280 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:39:57,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 13:39:57,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372509831] [2021-11-19 13:39:57,281 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:39:57,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:39:57,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:39:57,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:39:57,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-19 13:39:57,283 INFO L87 Difference]: Start difference. First operand 991 states and 1279 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) [2021-11-19 13:40:00,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:00,709 INFO L93 Difference]: Finished difference Result 1193 states and 1457 transitions. [2021-11-19 13:40:00,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:40:00,710 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 [2021-11-19 13:40:00,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:00,718 INFO L225 Difference]: With dead ends: 1193 [2021-11-19 13:40:00,718 INFO L226 Difference]: Without dead ends: 1193 [2021-11-19 13:40:00,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-19 13:40:00,720 INFO L933 BasicCegarLoop]: 635 mSDtfsCounter, 313 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 664 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:00,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 1737 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 714 Invalid, 0 Unknown, 664 Unchecked, 3.3s Time] [2021-11-19 13:40:00,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2021-11-19 13:40:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1071. [2021-11-19 13:40:00,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 735 states have (on average 1.9129251700680272) internal successors, (1406), 1061 states have internal predecessors, (1406), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 8 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-19 13:40:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1440 transitions. [2021-11-19 13:40:00,769 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1440 transitions. Word has length 53 [2021-11-19 13:40:00,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:00,770 INFO L470 AbstractCegarLoop]: Abstraction has 1071 states and 1440 transitions. [2021-11-19 13:40:00,770 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) [2021-11-19 13:40:00,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1440 transitions. [2021-11-19 13:40:00,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-19 13:40:00,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:00,772 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] [2021-11-19 13:40:00,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-19 13:40:00,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:40:00,985 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:40:00,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:00,986 INFO L85 PathProgramCache]: Analyzing trace with hash -61627503, now seen corresponding path program 1 times [2021-11-19 13:40:00,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:00,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913618641] [2021-11-19 13:40:00,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:00,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:00,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:00,989 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:01,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:40:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:01,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:40:01,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:01,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:01,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:01,550 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 [2021-11-19 13:40:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:01,940 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:01,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913618641] [2021-11-19 13:40:01,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913618641] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:40:01,941 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:40:01,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 13:40:01,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202184965] [2021-11-19 13:40:01,941 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:40:01,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:40:01,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:40:01,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:40:01,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:40:01,943 INFO L87 Difference]: Start difference. First operand 1071 states and 1440 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) [2021-11-19 13:40:03,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:03,623 INFO L93 Difference]: Finished difference Result 1038 states and 1374 transitions. [2021-11-19 13:40:03,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:40:03,625 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 [2021-11-19 13:40:03,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:03,632 INFO L225 Difference]: With dead ends: 1038 [2021-11-19 13:40:03,632 INFO L226 Difference]: Without dead ends: 1038 [2021-11-19 13:40:03,632 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 [2021-11-19 13:40:03,634 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 1650 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:03,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1653 Valid, 768 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-19 13:40:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2021-11-19 13:40:03,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 970. [2021-11-19 13:40:03,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 667 states have (on average 1.8035982008995501) internal successors, (1203), 961 states have internal predecessors, (1203), 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) [2021-11-19 13:40:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1235 transitions. [2021-11-19 13:40:03,680 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1235 transitions. Word has length 55 [2021-11-19 13:40:03,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:03,682 INFO L470 AbstractCegarLoop]: Abstraction has 970 states and 1235 transitions. [2021-11-19 13:40:03,682 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) [2021-11-19 13:40:03,683 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1235 transitions. [2021-11-19 13:40:03,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 13:40:03,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:03,687 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] [2021-11-19 13:40:03,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:03,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:40:03,901 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:40:03,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:03,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2021-11-19 13:40:03,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:03,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156646328] [2021-11-19 13:40:03,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:03,903 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:03,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:03,905 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:03,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 13:40:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:04,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:40:04,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:04,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:40:04,267 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 [2021-11-19 13:40:04,314 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 [2021-11-19 13:40:04,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:04,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:04,458 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:04,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156646328] [2021-11-19 13:40:04,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156646328] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:40:04,458 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:40:04,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 13:40:04,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546349763] [2021-11-19 13:40:04,459 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:40:04,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:40:04,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:40:04,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:40:04,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:40:04,460 INFO L87 Difference]: Start difference. First operand 970 states and 1235 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) [2021-11-19 13:40:07,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:07,109 INFO L93 Difference]: Finished difference Result 969 states and 1233 transitions. [2021-11-19 13:40:07,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:40:07,110 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 [2021-11-19 13:40:07,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:07,114 INFO L225 Difference]: With dead ends: 969 [2021-11-19 13:40:07,114 INFO L226 Difference]: Without dead ends: 969 [2021-11-19 13:40:07,115 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 [2021-11-19 13:40:07,115 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 4 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:07,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1862 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 13:40:07,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2021-11-19 13:40:07,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2021-11-19 13:40:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 667 states have (on average 1.800599700149925) internal successors, (1201), 960 states have internal predecessors, (1201), 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) [2021-11-19 13:40:07,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1233 transitions. [2021-11-19 13:40:07,142 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1233 transitions. Word has length 58 [2021-11-19 13:40:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:07,142 INFO L470 AbstractCegarLoop]: Abstraction has 969 states and 1233 transitions. [2021-11-19 13:40:07,142 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) [2021-11-19 13:40:07,143 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1233 transitions. [2021-11-19 13:40:07,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 13:40:07,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:07,144 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] [2021-11-19 13:40:07,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-19 13:40:07,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:40:07,367 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:40:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:07,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2021-11-19 13:40:07,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:07,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117122773] [2021-11-19 13:40:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:07,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:07,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:07,369 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:07,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 13:40:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:07,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:40:07,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:07,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:40:07,710 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 [2021-11-19 13:40:07,723 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 [2021-11-19 13:40:07,803 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 [2021-11-19 13:40:07,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-19 13:40:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:07,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:08,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:08,147 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:08,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117122773] [2021-11-19 13:40:08,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117122773] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:40:08,148 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:40:08,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 13:40:08,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836657472] [2021-11-19 13:40:08,148 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:40:08,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:40:08,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:40:08,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:40:08,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:40:08,150 INFO L87 Difference]: Start difference. First operand 969 states and 1233 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) [2021-11-19 13:40:16,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:16,144 INFO L93 Difference]: Finished difference Result 968 states and 1231 transitions. [2021-11-19 13:40:16,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:40:16,146 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 [2021-11-19 13:40:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:16,150 INFO L225 Difference]: With dead ends: 968 [2021-11-19 13:40:16,151 INFO L226 Difference]: Without dead ends: 968 [2021-11-19 13:40:16,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:40:16,151 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 3 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:16,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 2642 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2021-11-19 13:40:16,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2021-11-19 13:40:16,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2021-11-19 13:40:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 665 states have (on average 1.8030075187969925) internal successors, (1199), 959 states have internal predecessors, (1199), 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) [2021-11-19 13:40:16,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1231 transitions. [2021-11-19 13:40:16,177 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1231 transitions. Word has length 58 [2021-11-19 13:40:16,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:16,177 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1231 transitions. [2021-11-19 13:40:16,178 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) [2021-11-19 13:40:16,178 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1231 transitions. [2021-11-19 13:40:16,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 13:40:16,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:16,179 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] [2021-11-19 13:40:16,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:16,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:40:16,394 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:40:16,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:16,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1238792034, now seen corresponding path program 1 times [2021-11-19 13:40:16,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:16,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268298163] [2021-11-19 13:40:16,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:16,395 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:16,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:16,397 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:16,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 13:40:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:16,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:40:16,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:16,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:16,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:16,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:16,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268298163] [2021-11-19 13:40:16,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268298163] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:40:16,980 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:40:16,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 13:40:16,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835376444] [2021-11-19 13:40:16,981 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:40:16,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:40:16,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:40:16,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:40:16,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:40:16,983 INFO L87 Difference]: Start difference. First operand 968 states and 1231 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) [2021-11-19 13:40:17,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:17,123 INFO L93 Difference]: Finished difference Result 978 states and 1245 transitions. [2021-11-19 13:40:17,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:40:17,124 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 [2021-11-19 13:40:17,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:17,132 INFO L225 Difference]: With dead ends: 978 [2021-11-19 13:40:17,133 INFO L226 Difference]: Without dead ends: 978 [2021-11-19 13:40:17,133 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 [2021-11-19 13:40:17,134 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 7 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:17,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 2893 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:40:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2021-11-19 13:40:17,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2021-11-19 13:40:17,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 673 states have (on average 1.799405646359584) internal successors, (1211), 968 states have internal predecessors, (1211), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2021-11-19 13:40:17,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1245 transitions. [2021-11-19 13:40:17,164 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1245 transitions. Word has length 66 [2021-11-19 13:40:17,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:17,165 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1245 transitions. [2021-11-19 13:40:17,165 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) [2021-11-19 13:40:17,165 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1245 transitions. [2021-11-19 13:40:17,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 13:40:17,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:17,166 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] [2021-11-19 13:40:17,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:17,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:40:17,383 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:40:17,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:17,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1483591170, now seen corresponding path program 1 times [2021-11-19 13:40:17,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:17,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228512431] [2021-11-19 13:40:17,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:17,384 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:17,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:17,386 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:17,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 13:40:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:17,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:40:17,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:17,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:18,193 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:18,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228512431] [2021-11-19 13:40:18,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228512431] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:40:18,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1100742985] [2021-11-19 13:40:18,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:18,194 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:40:18,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:40:18,198 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:40:18,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-19 13:40:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:18,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:40:18,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:18,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:18,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:18,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:18,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1100742985] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:40:18,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149837633] [2021-11-19 13:40:18,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:18,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:40:18,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:40:18,845 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:40:18,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-19 13:40:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:19,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:40:19,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:19,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:19,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149837633] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:40:19,469 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:40:19,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-19 13:40:19,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001750647] [2021-11-19 13:40:19,470 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:40:19,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 13:40:19,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:40:19,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 13:40:19,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:40:19,472 INFO L87 Difference]: Start difference. First operand 978 states and 1245 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) [2021-11-19 13:40:19,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:19,994 INFO L93 Difference]: Finished difference Result 992 states and 1263 transitions. [2021-11-19 13:40:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 13:40:19,995 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 [2021-11-19 13:40:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:20,002 INFO L225 Difference]: With dead ends: 992 [2021-11-19 13:40:20,002 INFO L226 Difference]: Without dead ends: 986 [2021-11-19 13:40:20,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-19 13:40:20,004 INFO L933 BasicCegarLoop]: 727 mSDtfsCounter, 36 mSDsluCounter, 3611 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:20,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 4338 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:40:20,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2021-11-19 13:40:20,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 984. [2021-11-19 13:40:20,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 679 states have (on average 1.7938144329896908) internal successors, (1218), 974 states have internal predecessors, (1218), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2021-11-19 13:40:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1252 transitions. [2021-11-19 13:40:20,031 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1252 transitions. Word has length 68 [2021-11-19 13:40:20,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:20,031 INFO L470 AbstractCegarLoop]: Abstraction has 984 states and 1252 transitions. [2021-11-19 13:40:20,032 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) [2021-11-19 13:40:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1252 transitions. [2021-11-19 13:40:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-19 13:40:20,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:20,033 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] [2021-11-19 13:40:20,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2021-11-19 13:40:20,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:20,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:20,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:40:20,644 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 431 more)] === [2021-11-19 13:40:20,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:20,645 INFO L85 PathProgramCache]: Analyzing trace with hash 833289406, now seen corresponding path program 2 times [2021-11-19 13:40:20,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:20,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281849995] [2021-11-19 13:40:20,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:40:20,646 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:20,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:20,647 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:20,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 13:40:21,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:40:21,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:40:21,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:40:21,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:21,385 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:21,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:22,109 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:22,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281849995] [2021-11-19 13:40:22,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281849995] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:40:22,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [837630141] [2021-11-19 13:40:22,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:40:22,110 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:40:22,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:40:22,111 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:40:22,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-19 13:40:23,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:40:23,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:40:23,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:40:23,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:23,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:23,880 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:40:23,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [837630141] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:40:23,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113875459] [2021-11-19 13:40:23,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:40:23,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:40:23,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:40:23,882 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:40:23,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8595441-7db1-4dcc-adc7-c5235c5a1473/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-19 13:40:48,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:40:48,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:40:48,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 13:40:48,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:48,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:40:49,233 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:40:49,234 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 [2021-11-19 13:40:49,303 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 [2021-11-19 13:42:30,364 WARN L227 SmtUtils]: Spent 14.75s 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) [2021-11-19 13:42:30,365 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-19 13:42:30,365 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 [2021-11-19 13:42:31,170 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-19 13:42:31,170 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 [2021-11-19 13:42:31,279 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:42:31,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:33,550 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 13:42:33,550 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 62 treesize of output 61 [2021-11-19 13:47:51,814 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 13:47:51,814 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 109 treesize of output 108 [2021-11-19 13:47:55,608 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr188_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_118| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr188| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_120| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (select (select (store |c_#memory_$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~loopctr188|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_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|)) |c_#Ultimate.C_memset_#ptr.base|))) is different from false [2021-11-19 13:48:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:48:06,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113875459] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:48:06,315 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:48:06,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-19 13:48:06,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905212250] [2021-11-19 13:48:06,316 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:48:06,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-19 13:48:06,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:48:06,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-19 13:48:06,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1540, Unknown=181, NotChecked=84, Total=1980 [2021-11-19 13:48:06,319 INFO L87 Difference]: Start difference. First operand 984 states and 1252 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) [2021-11-19 13:48:10,709 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_#Ultimate.C_memset_#t~loopctr188_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_118| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr188| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_120| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr188|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-19 13:49:24,988 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_83|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr188|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr188| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr188|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$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~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |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|)))))) is different from false [2021-11-19 13:50:01,508 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr188|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_84|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-19 13:50:42,367 WARN L227 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 99 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 13:51:00,708 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr188_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr188| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr188|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_84| (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_86|) (_ bv0 32))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr188|) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_86|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_87|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-19 13:51:02,731 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_84| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_83|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_84|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_85|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_86|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_87|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_88|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (bvult (_ bv4 32) |c_#Ultimate.C_memset_#amount|) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr188|) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_86|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_87|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-19 13:51:04,758 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_84| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_83|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_84|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_85|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_86|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_87|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_88|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr188|) (bvult (_ bv5 32) |c_#Ultimate.C_memset_#amount|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr188| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr188|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$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~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |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|)))))) is different from false [2021-11-19 13:53:10,061 WARN L227 SmtUtils]: Spent 18.10s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)