./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/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 bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:39:16,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:39:16,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:39:16,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:39:16,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:39:16,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:39:16,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:39:16,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:39:16,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:39:16,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:39:16,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:39:16,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:39:16,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:39:16,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:39:16,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:39:16,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:39:16,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:39:16,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:39:16,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:39:16,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:39:16,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:39:16,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:39:16,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:39:16,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:39:16,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:39:16,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:39:16,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:39:16,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:39:16,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:39:16,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:39:16,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:39:16,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:39:16,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:39:16,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:39:16,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:39:16,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:39:16,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:39:16,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:39:16,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:39:16,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:39:16,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:39:16,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-19 14:39:16,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:39:16,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:39:16,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:39:16,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:39:16,817 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:39:16,818 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:39:16,818 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:39:16,818 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:39:16,819 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:39:16,819 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:39:16,820 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:39:16,821 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:39:16,821 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:39:16,821 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:39:16,822 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:39:16,822 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:39:16,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 14:39:16,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 14:39:16,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:39:16,824 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:39:16,824 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 14:39:16,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:39:16,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:39:16,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:39:16,825 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 14:39:16,825 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 14:39:16,826 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 14:39:16,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:39:16,826 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:39:16,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:39:16,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:39:16,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:39:16,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:39:16,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:16,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:39:16,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:39:16,839 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:39:16,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:39:16,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:39:16,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:39:16,840 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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c [2021-11-19 14:39:17,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:39:17,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:39:17,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:39:17,200 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:39:17,201 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:39:17,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2021-11-19 14:39:17,281 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/data/6573ab826/c144bb8993b948c493d6567f7d3b3ec9/FLAG45268a96f [2021-11-19 14:39:18,056 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:39:18,057 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2021-11-19 14:39:18,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/data/6573ab826/c144bb8993b948c493d6567f7d3b3ec9/FLAG45268a96f [2021-11-19 14:39:18,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/data/6573ab826/c144bb8993b948c493d6567f7d3b3ec9 [2021-11-19 14:39:18,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:39:18,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:39:18,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:18,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:39:18,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:39:18,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:18" (1/1) ... [2021-11-19 14:39:18,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4ecb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:18, skipping insertion in model container [2021-11-19 14:39:18,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:18" (1/1) ... [2021-11-19 14:39:18,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:39:18,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:18,696 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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i[33021,33034] [2021-11-19 14:39:18,861 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:18,880 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 14:39:18,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@d15738e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:18, skipping insertion in model container [2021-11-19 14:39:18,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:18,882 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:39:18,884 INFO L158 Benchmark]: Toolchain (without parser) took 717.23ms. Allocated memory is still 90.2MB. Free memory was 64.1MB in the beginning and 47.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-19 14:39:18,885 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:39:18,886 INFO L158 Benchmark]: CACSL2BoogieTranslator took 712.08ms. Allocated memory is still 90.2MB. Free memory was 63.8MB in the beginning and 47.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-19 14:39:18,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 712.08ms. Allocated memory is still 90.2MB. Free memory was 63.8MB in the beginning and 47.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. 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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/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 bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:39:21,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:39:21,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:39:21,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:39:21,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:39:21,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:39:21,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:39:21,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:39:21,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:39:21,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:39:21,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:39:21,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:39:21,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:39:21,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:39:21,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:39:21,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:39:21,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:39:21,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:39:21,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:39:21,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:39:21,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:39:21,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:39:21,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:39:21,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:39:21,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:39:21,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:39:21,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:39:21,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:39:21,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:39:21,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:39:21,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:39:21,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:39:21,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:39:21,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:39:21,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:39:21,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:39:21,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:39:21,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:39:21,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:39:21,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:39:21,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:39:21,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-19 14:39:21,589 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:39:21,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:39:21,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:39:21,591 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:39:21,592 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:39:21,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:39:21,592 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:39:21,592 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:39:21,593 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:39:21,593 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:39:21,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 14:39:21,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 14:39:21,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:39:21,596 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:39:21,597 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 14:39:21,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:39:21,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:39:21,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:39:21,598 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 14:39:21,598 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 14:39:21,598 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 14:39:21,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:39:21,599 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:39:21,599 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:39:21,599 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:39:21,599 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:39:21,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:39:21,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:39:21,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:39:21,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:39:21,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:21,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:39:21,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:39:21,602 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:39:21,602 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:39:21,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:39:21,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:39:21,603 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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c [2021-11-19 14:39:22,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:39:22,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:39:22,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:39:22,116 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:39:22,117 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:39:22,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2021-11-19 14:39:22,226 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/data/65a859860/4baf5c60cf10450fb5df228ea74d3d71/FLAG0c7815bf7 [2021-11-19 14:39:22,937 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:39:22,938 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2021-11-19 14:39:22,959 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/data/65a859860/4baf5c60cf10450fb5df228ea74d3d71/FLAG0c7815bf7 [2021-11-19 14:39:23,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/data/65a859860/4baf5c60cf10450fb5df228ea74d3d71 [2021-11-19 14:39:23,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:39:23,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:39:23,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:23,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:39:23,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:39:23,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:23" (1/1) ... [2021-11-19 14:39:23,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294ef00a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:23, skipping insertion in model container [2021-11-19 14:39:23,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:23" (1/1) ... [2021-11-19 14:39:23,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:39:23,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:23,780 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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i[33021,33034] [2021-11-19 14:39:23,948 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:23,972 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:39:23,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:24,030 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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i[33021,33034] [2021-11-19 14:39:24,140 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:24,146 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:39:24,182 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_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i[33021,33034] [2021-11-19 14:39:24,283 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:24,338 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:39:24,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24 WrapperNode [2021-11-19 14:39:24,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:24,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:39:24,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:39:24,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:39:24,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (1/1) ... [2021-11-19 14:39:24,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (1/1) ... [2021-11-19 14:39:24,459 INFO L137 Inliner]: procedures = 180, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 792 [2021-11-19 14:39:24,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:39:24,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:39:24,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:39:24,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:39:24,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (1/1) ... [2021-11-19 14:39:24,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (1/1) ... [2021-11-19 14:39:24,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (1/1) ... [2021-11-19 14:39:24,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (1/1) ... [2021-11-19 14:39:24,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (1/1) ... [2021-11-19 14:39:24,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (1/1) ... [2021-11-19 14:39:24,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (1/1) ... [2021-11-19 14:39:24,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:39:24,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:39:24,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:39:24,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:39:24,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (1/1) ... [2021-11-19 14:39:24,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:24,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:39:24,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:39:24,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:39:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:39:24,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:39:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:39:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:39:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:39:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:39:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:39:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:39:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:39:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:39:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:39:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:39:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:39:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:39:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:39:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:39:25,092 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:39:25,094 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:39:25,098 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 14:39:29,861 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:39:29,893 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:39:29,893 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-19 14:39:29,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:29 BoogieIcfgContainer [2021-11-19 14:39:29,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:39:29,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:39:29,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:39:29,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:39:29,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:39:23" (1/3) ... [2021-11-19 14:39:29,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2fd781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:39:29, skipping insertion in model container [2021-11-19 14:39:29,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:24" (2/3) ... [2021-11-19 14:39:29,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2fd781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:39:29, skipping insertion in model container [2021-11-19 14:39:29,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:29" (3/3) ... [2021-11-19 14:39:29,919 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test1-2.i [2021-11-19 14:39:29,926 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:39:29,927 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 435 error locations. [2021-11-19 14:39:30,000 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:39:30,016 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 14:39:30,016 INFO L340 AbstractCegarLoop]: Starting to check reachability of 435 error locations. [2021-11-19 14:39:30,073 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 14:39:30,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 14:39:30,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:30,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 14:39:30,082 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 14:39:30,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:30,091 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2021-11-19 14:39:30,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:30,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637963001] [2021-11-19 14:39:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:30,106 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:30,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:30,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:30,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:39:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:30,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:39:30,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:30,357 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 14:39:30,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:30,380 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 14:39:30,381 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:30,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637963001] [2021-11-19 14:39:30,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637963001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:30,383 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:30,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:39:30,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049332917] [2021-11-19 14:39:30,386 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:30,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:39:30,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:30,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:39:30,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:39:30,442 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 14:39:30,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:30,560 INFO L93 Difference]: Finished difference Result 858 states and 916 transitions. [2021-11-19 14:39:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:39:30,563 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 14:39:30,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:30,595 INFO L225 Difference]: With dead ends: 858 [2021-11-19 14:39:30,601 INFO L226 Difference]: Without dead ends: 856 [2021-11-19 14:39:30,603 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 14:39:30,616 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 14:39:30,620 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 14:39:30,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2021-11-19 14:39:30,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 856. [2021-11-19 14:39:30,785 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 14:39:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 914 transitions. [2021-11-19 14:39:30,804 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 914 transitions. Word has length 5 [2021-11-19 14:39:30,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:30,804 INFO L470 AbstractCegarLoop]: Abstraction has 856 states and 914 transitions. [2021-11-19 14:39:30,805 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 14:39:30,805 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 914 transitions. [2021-11-19 14:39:30,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 14:39:30,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:30,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 14:39:30,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:31,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:31,021 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 14:39:31,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:31,027 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2021-11-19 14:39:31,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:31,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007894194] [2021-11-19 14:39:31,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:31,030 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:31,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:31,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:31,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:39:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:31,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:39:31,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:31,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:39:31,252 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 14:39:31,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:31,276 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 14:39:31,276 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:31,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007894194] [2021-11-19 14:39:31,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007894194] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:31,277 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:31,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:39:31,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491768786] [2021-11-19 14:39:31,278 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:31,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:39:31,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:31,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:39:31,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:39:31,281 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 14:39:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:33,538 INFO L93 Difference]: Finished difference Result 814 states and 873 transitions. [2021-11-19 14:39:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:39:33,540 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 14:39:33,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:33,549 INFO L225 Difference]: With dead ends: 814 [2021-11-19 14:39:33,550 INFO L226 Difference]: Without dead ends: 814 [2021-11-19 14:39:33,550 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 14:39:33,553 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 596 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:33,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 662 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:39:33,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2021-11-19 14:39:33,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 807. [2021-11-19 14:39:33,597 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 14:39:33,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 865 transitions. [2021-11-19 14:39:33,606 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 865 transitions. Word has length 5 [2021-11-19 14:39:33,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:33,606 INFO L470 AbstractCegarLoop]: Abstraction has 807 states and 865 transitions. [2021-11-19 14:39:33,606 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 14:39:33,607 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 865 transitions. [2021-11-19 14:39:33,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 14:39:33,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:33,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 14:39:33,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 14:39:33,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:33,821 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 14:39:33,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:33,821 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2021-11-19 14:39:33,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:33,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771102684] [2021-11-19 14:39:33,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:33,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:33,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:33,824 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:33,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:39:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:33,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:39:33,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:33,995 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 14:39:34,040 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 14:39:34,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:34,136 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 14:39:34,137 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:34,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771102684] [2021-11-19 14:39:34,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771102684] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:34,137 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:34,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 14:39:34,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402470823] [2021-11-19 14:39:34,138 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:34,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:39:34,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:34,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:39:34,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:34,140 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 14:39:38,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:38,642 INFO L93 Difference]: Finished difference Result 880 states and 942 transitions. [2021-11-19 14:39:38,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:39:38,644 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 14:39:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:38,650 INFO L225 Difference]: With dead ends: 880 [2021-11-19 14:39:38,650 INFO L226 Difference]: Without dead ends: 880 [2021-11-19 14:39:38,651 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 14:39:38,652 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 323 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:38,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1276 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-19 14:39:38,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2021-11-19 14:39:38,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 829. [2021-11-19 14:39:38,679 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 14:39:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 921 transitions. [2021-11-19 14:39:38,685 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 921 transitions. Word has length 5 [2021-11-19 14:39:38,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:38,685 INFO L470 AbstractCegarLoop]: Abstraction has 829 states and 921 transitions. [2021-11-19 14:39:38,686 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 14:39:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 921 transitions. [2021-11-19 14:39:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 14:39:38,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:38,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 14:39:38,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:38,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:38,894 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 14:39:38,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:38,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1156735106, now seen corresponding path program 1 times [2021-11-19 14:39:38,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:38,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702286171] [2021-11-19 14:39:38,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:38,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:38,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:38,900 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:38,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:39:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:39,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:39:39,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:39,046 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 14:39:39,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:39,071 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 14:39:39,072 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:39,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702286171] [2021-11-19 14:39:39,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702286171] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:39,079 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:39,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:39:39,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481913164] [2021-11-19 14:39:39,080 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:39,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:39:39,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:39,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:39:39,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:39,084 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 14:39:39,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:39,259 INFO L93 Difference]: Finished difference Result 1411 states and 1564 transitions. [2021-11-19 14:39:39,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:39:39,260 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 14:39:39,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:39,270 INFO L225 Difference]: With dead ends: 1411 [2021-11-19 14:39:39,270 INFO L226 Difference]: Without dead ends: 1411 [2021-11-19 14:39:39,271 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 14:39:39,272 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 14:39:39,272 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 14:39:39,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2021-11-19 14:39:39,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1151. [2021-11-19 14:39:39,311 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 14:39:39,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1564 transitions. [2021-11-19 14:39:39,320 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1564 transitions. Word has length 6 [2021-11-19 14:39:39,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:39,320 INFO L470 AbstractCegarLoop]: Abstraction has 1151 states and 1564 transitions. [2021-11-19 14:39:39,321 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 14:39:39,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1564 transitions. [2021-11-19 14:39:39,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 14:39:39,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:39,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:39,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:39,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:39,535 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 14:39:39,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2021-11-19 14:39:39,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:39,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467712977] [2021-11-19 14:39:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:39,537 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:39,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:39,538 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:39,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:39:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:39,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:39:39,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:39,715 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 14:39:39,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:39,747 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 14:39:39,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:39,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467712977] [2021-11-19 14:39:39,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467712977] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:39,748 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:39,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:39:39,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552913965] [2021-11-19 14:39:39,749 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:39,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:39:39,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:39,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:39:39,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:39,750 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 14:39:39,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:39,829 INFO L93 Difference]: Finished difference Result 1091 states and 1478 transitions. [2021-11-19 14:39:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:39:39,830 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 14:39:39,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:39,838 INFO L225 Difference]: With dead ends: 1091 [2021-11-19 14:39:39,838 INFO L226 Difference]: Without dead ends: 1091 [2021-11-19 14:39:39,839 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 14:39:39,840 INFO L933 BasicCegarLoop]: 807 mSDtfsCounter, 1546 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:39,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 837 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:39:39,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2021-11-19 14:39:39,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1091. [2021-11-19 14:39:39,870 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 14:39:39,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1478 transitions. [2021-11-19 14:39:39,877 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1478 transitions. Word has length 11 [2021-11-19 14:39:39,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:39,878 INFO L470 AbstractCegarLoop]: Abstraction has 1091 states and 1478 transitions. [2021-11-19 14:39:39,878 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 14:39:39,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1478 transitions. [2021-11-19 14:39:39,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 14:39:39,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:39,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:39,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:40,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:40,092 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 14:39:40,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:40,093 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2021-11-19 14:39:40,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:40,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220749027] [2021-11-19 14:39:40,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:40,095 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:40,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:40,096 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:40,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:39:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:40,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:39:40,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:40,272 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 14:39:40,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:40,308 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 14:39:40,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:40,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220749027] [2021-11-19 14:39:40,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220749027] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:40,309 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:40,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 14:39:40,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389153650] [2021-11-19 14:39:40,310 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:40,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:39:40,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:40,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:39:40,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:39:40,312 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 14:39:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:40,477 INFO L93 Difference]: Finished difference Result 1063 states and 1422 transitions. [2021-11-19 14:39:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:39:40,478 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 14:39:40,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:40,486 INFO L225 Difference]: With dead ends: 1063 [2021-11-19 14:39:40,487 INFO L226 Difference]: Without dead ends: 1063 [2021-11-19 14:39:40,487 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 14:39:40,490 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 14:39:40,490 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 14:39:40,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2021-11-19 14:39:40,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1061. [2021-11-19 14:39:40,527 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 14:39:40,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1420 transitions. [2021-11-19 14:39:40,538 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1420 transitions. Word has length 13 [2021-11-19 14:39:40,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:40,539 INFO L470 AbstractCegarLoop]: Abstraction has 1061 states and 1420 transitions. [2021-11-19 14:39:40,540 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 14:39:40,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1420 transitions. [2021-11-19 14:39:40,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 14:39:40,541 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:40,542 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 14:39:40,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:40,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:40,754 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 14:39:40,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:40,755 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2021-11-19 14:39:40,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:40,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073124810] [2021-11-19 14:39:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:40,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:40,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:40,757 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:40,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:39:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:40,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:39:40,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:40,895 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 14:39:40,997 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 14:39:40,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:41,097 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 14:39:41,098 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:41,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073124810] [2021-11-19 14:39:41,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073124810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:41,098 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:41,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:39:41,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553779782] [2021-11-19 14:39:41,099 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:41,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:39:41,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:41,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:39:41,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:41,100 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 14:39:43,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:43,476 INFO L93 Difference]: Finished difference Result 1294 states and 1680 transitions. [2021-11-19 14:39:43,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:39:43,477 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 14:39:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:43,488 INFO L225 Difference]: With dead ends: 1294 [2021-11-19 14:39:43,488 INFO L226 Difference]: Without dead ends: 1294 [2021-11-19 14:39:43,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:39:43,489 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, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:43,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 718 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:39:43,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2021-11-19 14:39:43,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1057. [2021-11-19 14:39:43,527 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 14:39:43,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1412 transitions. [2021-11-19 14:39:43,533 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1412 transitions. Word has length 27 [2021-11-19 14:39:43,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:43,534 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 1412 transitions. [2021-11-19 14:39:43,534 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 14:39:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1412 transitions. [2021-11-19 14:39:43,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 14:39:43,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:43,535 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 14:39:43,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:43,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:43,754 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 14:39:43,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:43,755 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2021-11-19 14:39:43,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:43,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276609796] [2021-11-19 14:39:43,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:43,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:43,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:43,757 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:43,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:39:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:43,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:39:43,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:43,922 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 14:39:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:39:44,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:44,792 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 14:39:44,793 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:44,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276609796] [2021-11-19 14:39:44,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276609796] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:44,793 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:44,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 14:39:44,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219764737] [2021-11-19 14:39:44,794 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:44,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:39:44,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:44,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:39:44,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:39:44,795 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 14:39:52,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:52,049 INFO L93 Difference]: Finished difference Result 1357 states and 1715 transitions. [2021-11-19 14:39:52,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:39:52,050 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 14:39:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:52,060 INFO L225 Difference]: With dead ends: 1357 [2021-11-19 14:39:52,060 INFO L226 Difference]: Without dead ends: 1357 [2021-11-19 14:39:52,060 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 14:39:52,061 INFO L933 BasicCegarLoop]: 573 mSDtfsCounter, 699 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s 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, 7.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:52,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [709 Valid, 1778 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2021-11-19 14:39:52,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2021-11-19 14:39:52,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1053. [2021-11-19 14:39:52,095 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 14:39:52,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1404 transitions. [2021-11-19 14:39:52,101 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1404 transitions. Word has length 27 [2021-11-19 14:39:52,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:52,101 INFO L470 AbstractCegarLoop]: Abstraction has 1053 states and 1404 transitions. [2021-11-19 14:39:52,102 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 14:39:52,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1404 transitions. [2021-11-19 14:39:52,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-19 14:39:52,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:52,104 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 14:39:52,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:52,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:52,317 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 14:39:52,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:52,318 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2021-11-19 14:39:52,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:52,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700151880] [2021-11-19 14:39:52,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:52,319 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:52,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:52,322 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:52,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:39:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:52,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:39:52,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:52,700 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 14:39:52,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:52,842 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 14:39:52,843 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:52,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700151880] [2021-11-19 14:39:52,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700151880] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:52,843 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:52,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:39:52,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635541218] [2021-11-19 14:39:52,844 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:52,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:39:52,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:39:52,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:52,845 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 14:39:52,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:52,923 INFO L93 Difference]: Finished difference Result 1041 states and 1384 transitions. [2021-11-19 14:39:52,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:39:52,924 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 14:39:52,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:52,932 INFO L225 Difference]: With dead ends: 1041 [2021-11-19 14:39:52,933 INFO L226 Difference]: Without dead ends: 1041 [2021-11-19 14:39:52,933 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 14:39:52,934 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:52,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [733 Valid, 1525 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:39:52,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-11-19 14:39:52,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2021-11-19 14:39:52,964 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 14:39:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1384 transitions. [2021-11-19 14:39:52,969 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1384 transitions. Word has length 42 [2021-11-19 14:39:52,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:52,970 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1384 transitions. [2021-11-19 14:39:52,970 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 14:39:52,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1384 transitions. [2021-11-19 14:39:52,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 14:39:52,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:52,973 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 14:39:52,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:53,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:53,189 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 14:39:53,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:53,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2021-11-19 14:39:53,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:53,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800563668] [2021-11-19 14:39:53,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:53,190 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:53,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:53,191 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:53,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:39:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:53,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:39:53,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:53,827 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 14:39:53,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:54,262 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 14:39:54,262 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:54,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800563668] [2021-11-19 14:39:54,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800563668] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:54,263 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:54,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:39:54,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795687125] [2021-11-19 14:39:54,263 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:54,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:39:54,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:54,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:39:54,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:39:54,264 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 14:39:54,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:54,528 INFO L93 Difference]: Finished difference Result 1186 states and 1483 transitions. [2021-11-19 14:39:54,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:39:54,529 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 14:39:54,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:54,537 INFO L225 Difference]: With dead ends: 1186 [2021-11-19 14:39:54,537 INFO L226 Difference]: Without dead ends: 1186 [2021-11-19 14:39:54,537 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 14:39:54,538 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, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:54,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 1465 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:39:54,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2021-11-19 14:39:54,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 991. [2021-11-19 14:39:54,563 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 14:39:54,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1279 transitions. [2021-11-19 14:39:54,568 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1279 transitions. Word has length 50 [2021-11-19 14:39:54,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:54,569 INFO L470 AbstractCegarLoop]: Abstraction has 991 states and 1279 transitions. [2021-11-19 14:39:54,569 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 14:39:54,570 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1279 transitions. [2021-11-19 14:39:54,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-19 14:39:54,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:54,571 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 14:39:54,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:54,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:54,791 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 14:39:54,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:54,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2021-11-19 14:39:54,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:54,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920804127] [2021-11-19 14:39:54,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:54,793 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:54,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:54,794 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:54,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:39:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:55,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:39:55,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:55,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:39:55,110 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 14:39:55,866 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 14:39:55,867 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 14:39:55,875 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 14:39:55,876 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 14:39:55,914 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 14:39:55,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:01,418 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 14:40:01,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:01,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920804127] [2021-11-19 14:40:01,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920804127] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:01,419 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:01,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 14:40:01,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669987662] [2021-11-19 14:40:01,420 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:01,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:40:01,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:01,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:40:01,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-19 14:40:01,422 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 14:40:04,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:04,879 INFO L93 Difference]: Finished difference Result 1193 states and 1457 transitions. [2021-11-19 14:40:04,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:40:04,881 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 14:40:04,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:04,889 INFO L225 Difference]: With dead ends: 1193 [2021-11-19 14:40:04,889 INFO L226 Difference]: Without dead ends: 1193 [2021-11-19 14:40:04,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-19 14:40:04,890 INFO L933 BasicCegarLoop]: 635 mSDtfsCounter, 313 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:04,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 1737 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 714 Invalid, 0 Unknown, 664 Unchecked, 3.4s Time] [2021-11-19 14:40:04,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2021-11-19 14:40:04,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1071. [2021-11-19 14:40:04,918 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 14:40:04,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1440 transitions. [2021-11-19 14:40:04,924 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1440 transitions. Word has length 53 [2021-11-19 14:40:04,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:04,924 INFO L470 AbstractCegarLoop]: Abstraction has 1071 states and 1440 transitions. [2021-11-19 14:40:04,925 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 14:40:04,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1440 transitions. [2021-11-19 14:40:04,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-19 14:40:04,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:04,926 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 14:40:04,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-19 14:40:05,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:05,142 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 14:40:05,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:05,143 INFO L85 PathProgramCache]: Analyzing trace with hash -61627503, now seen corresponding path program 1 times [2021-11-19 14:40:05,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:05,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467415913] [2021-11-19 14:40:05,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:05,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:05,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:05,147 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:05,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:40:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:05,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:40:05,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:05,664 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 14:40:05,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:05,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-19 14:40:06,178 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 14:40:06,178 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:06,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467415913] [2021-11-19 14:40:06,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467415913] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:06,179 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:06,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 14:40:06,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119569245] [2021-11-19 14:40:06,179 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:06,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:40:06,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:06,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:40:06,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:40:06,181 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 14:40:07,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:07,840 INFO L93 Difference]: Finished difference Result 1038 states and 1374 transitions. [2021-11-19 14:40:07,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:40:07,841 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 14:40:07,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:07,848 INFO L225 Difference]: With dead ends: 1038 [2021-11-19 14:40:07,849 INFO L226 Difference]: Without dead ends: 1038 [2021-11-19 14:40:07,849 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 14:40:07,850 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 14:40:07,850 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 14:40:07,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2021-11-19 14:40:07,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 970. [2021-11-19 14:40:07,874 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 14:40:07,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1235 transitions. [2021-11-19 14:40:07,879 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1235 transitions. Word has length 55 [2021-11-19 14:40:07,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:07,880 INFO L470 AbstractCegarLoop]: Abstraction has 970 states and 1235 transitions. [2021-11-19 14:40:07,880 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 14:40:07,881 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1235 transitions. [2021-11-19 14:40:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 14:40:07,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:07,882 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 14:40:07,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:08,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:08,098 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 14:40:08,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:08,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2021-11-19 14:40:08,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:08,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11553377] [2021-11-19 14:40:08,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:08,099 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:08,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:08,100 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:08,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:40:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:08,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:40:08,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:08,446 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 14:40:08,464 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 14:40:08,512 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 14:40:08,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:40:08,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:08,671 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 14:40:08,671 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:08,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11553377] [2021-11-19 14:40:08,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11553377] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:08,672 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:08,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:40:08,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494090868] [2021-11-19 14:40:08,672 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:08,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:40:08,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:08,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:40:08,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:40:08,673 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 14:40:11,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:11,420 INFO L93 Difference]: Finished difference Result 969 states and 1233 transitions. [2021-11-19 14:40:11,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:40:11,421 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 14:40:11,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:11,426 INFO L225 Difference]: With dead ends: 969 [2021-11-19 14:40:11,427 INFO L226 Difference]: Without dead ends: 969 [2021-11-19 14:40:11,427 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 14:40:11,428 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 4 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:11,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1862 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-19 14:40:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2021-11-19 14:40:11,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2021-11-19 14:40:11,451 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 14:40:11,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1233 transitions. [2021-11-19 14:40:11,455 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1233 transitions. Word has length 58 [2021-11-19 14:40:11,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:11,456 INFO L470 AbstractCegarLoop]: Abstraction has 969 states and 1233 transitions. [2021-11-19 14:40:11,456 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 14:40:11,456 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1233 transitions. [2021-11-19 14:40:11,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 14:40:11,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:11,457 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 14:40:11,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-19 14:40:11,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:11,671 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 14:40:11,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:11,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2021-11-19 14:40:11,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:11,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309939549] [2021-11-19 14:40:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:11,673 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:11,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:11,674 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:11,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:40:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:11,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:40:11,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:11,965 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 14:40:12,024 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 14:40:12,038 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 14:40:12,109 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 14:40:12,113 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 14:40:12,159 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 14:40:12,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:12,516 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 14:40:12,516 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:12,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309939549] [2021-11-19 14:40:12,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309939549] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:12,517 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:12,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 14:40:12,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587442398] [2021-11-19 14:40:12,517 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:12,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:40:12,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:12,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:40:12,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:40:12,521 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 14:40:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:20,673 INFO L93 Difference]: Finished difference Result 968 states and 1231 transitions. [2021-11-19 14:40:20,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:40:20,675 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 14:40:20,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:20,680 INFO L225 Difference]: With dead ends: 968 [2021-11-19 14:40:20,680 INFO L226 Difference]: Without dead ends: 968 [2021-11-19 14:40:20,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:40:20,681 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 3 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s 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, 8.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:20,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 2642 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2021-11-19 14:40:20,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2021-11-19 14:40:20,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2021-11-19 14:40:20,705 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 14:40:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1231 transitions. [2021-11-19 14:40:20,710 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1231 transitions. Word has length 58 [2021-11-19 14:40:20,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:20,710 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1231 transitions. [2021-11-19 14:40:20,711 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 14:40:20,711 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1231 transitions. [2021-11-19 14:40:20,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 14:40:20,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:20,712 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 14:40:20,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:20,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:20,928 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 14:40:20,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:20,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1238792034, now seen corresponding path program 1 times [2021-11-19 14:40:20,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:20,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428759859] [2021-11-19 14:40:20,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:20,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:20,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:20,931 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:20,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:40:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:21,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:40:21,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:21,337 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 14:40:21,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:21,525 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 14:40:21,525 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:21,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428759859] [2021-11-19 14:40:21,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428759859] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:21,526 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:21,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:40:21,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090850511] [2021-11-19 14:40:21,526 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:21,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:40:21,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:21,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:40:21,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:40:21,527 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 14:40:21,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:21,635 INFO L93 Difference]: Finished difference Result 978 states and 1245 transitions. [2021-11-19 14:40:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:40:21,636 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 14:40:21,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:21,644 INFO L225 Difference]: With dead ends: 978 [2021-11-19 14:40:21,645 INFO L226 Difference]: Without dead ends: 978 [2021-11-19 14:40:21,645 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 14:40:21,646 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 14:40:21,647 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 14:40:21,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2021-11-19 14:40:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2021-11-19 14:40:21,672 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 14:40:21,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1245 transitions. [2021-11-19 14:40:21,677 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1245 transitions. Word has length 66 [2021-11-19 14:40:21,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:21,678 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1245 transitions. [2021-11-19 14:40:21,678 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 14:40:21,678 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1245 transitions. [2021-11-19 14:40:21,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 14:40:21,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:21,680 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 14:40:21,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:21,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:21,895 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 14:40:21,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:21,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1483591170, now seen corresponding path program 1 times [2021-11-19 14:40:21,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:21,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336733461] [2021-11-19 14:40:21,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:21,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:21,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:21,898 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:21,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:40:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:22,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:40:22,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:22,369 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 14:40:22,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:22,633 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 14:40:22,634 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:22,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336733461] [2021-11-19 14:40:22,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336733461] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:40:22,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [843082237] [2021-11-19 14:40:22,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:22,634 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:40:22,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:40:22,639 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:40:22,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-19 14:40:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:22,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:40:22,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:23,075 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 14:40:23,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:23,248 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 14:40:23,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [843082237] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:40:23,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167181509] [2021-11-19 14:40:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:23,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:40:23,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:40:23,251 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:40:23,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-19 14:40:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:23,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:40:23,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:23,630 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 14:40:23,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:23,898 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 14:40:23,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167181509] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:40:23,899 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:40:23,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-19 14:40:23,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394103276] [2021-11-19 14:40:23,900 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:40:23,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:40:23,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:23,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:40:23,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:40:23,912 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 14:40:24,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:24,475 INFO L93 Difference]: Finished difference Result 992 states and 1263 transitions. [2021-11-19 14:40:24,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 14:40:24,476 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 14:40:24,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:24,481 INFO L225 Difference]: With dead ends: 992 [2021-11-19 14:40:24,482 INFO L226 Difference]: Without dead ends: 986 [2021-11-19 14:40:24,482 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 14:40:24,483 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, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:24,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 4338 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:40:24,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2021-11-19 14:40:24,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 984. [2021-11-19 14:40:24,509 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 14:40:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1252 transitions. [2021-11-19 14:40:24,513 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1252 transitions. Word has length 68 [2021-11-19 14:40:24,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:24,513 INFO L470 AbstractCegarLoop]: Abstraction has 984 states and 1252 transitions. [2021-11-19 14:40:24,514 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 14:40:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1252 transitions. [2021-11-19 14:40:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-19 14:40:24,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:24,515 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 14:40:24,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:24,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:24,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:25,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:40:25,135 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 14:40:25,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:25,136 INFO L85 PathProgramCache]: Analyzing trace with hash 833289406, now seen corresponding path program 2 times [2021-11-19 14:40:25,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:25,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39617407] [2021-11-19 14:40:25,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:40:25,137 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:25,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:25,138 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:25,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:40:25,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:40:25,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:40:25,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:40:25,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:25,839 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 14:40:25,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:26,668 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 14:40:26,669 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:26,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39617407] [2021-11-19 14:40:26,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39617407] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:40:26,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1037163735] [2021-11-19 14:40:26,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:40:26,670 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:40:26,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:40:26,672 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:40:26,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-19 14:40:27,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:40:27,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:40:27,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:40:27,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:27,981 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 14:40:27,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:28,303 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 14:40:28,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1037163735] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:40:28,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412311334] [2021-11-19 14:40:28,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:40:28,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:40:28,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:40:28,306 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:40:28,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe846edf-be6a-4bfa-a7a5-e6e5073cf3b8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-19 14:40:54,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:40:54,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:40:54,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:40:54,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:54,534 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 14:40:54,775 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 14:40:54,776 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 14:40:54,829 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 14:42:35,456 WARN L227 SmtUtils]: Spent 14.56s 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 14:42:35,457 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-19 14:42:35,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 79 [2021-11-19 14:42:36,199 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-19 14:42:36,199 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 14:42:36,310 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 14:42:36,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:38,289 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 14:42:38,290 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 14:47:52,053 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 14:47:52,053 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 14:47:55,276 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 14:48:02,561 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 14:48:02,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412311334] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:48:02,562 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:48:02,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-19 14:48:02,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731542674] [2021-11-19 14:48:02,562 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:48:02,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-19 14:48:02,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:48:02,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-19 14:48:02,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1540, Unknown=180, NotChecked=84, Total=1980 [2021-11-19 14:48:02,565 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 14:48:08,931 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 14:48:31,261 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$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$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$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32))) (= (store |c_old(#memory_$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|)) is different from false [2021-11-19 14:48:55,474 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr188|) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_84| (_ BitVec 32))) (= (store |c_old(#memory_$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$.base|)) (forall ((|v_#Ultimate.C_memset_#t~loopctr188_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr188| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$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_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)))))) is different from false [2021-11-19 14:49:32,972 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_85|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr188|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr188| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$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 14:49:34,982 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_84| (_ BitVec 32))) (= |c_#memory_$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|)) is different from false [2021-11-19 14:49:59,434 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$.base|)) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr188|) (bvult (_ bv5 32) |c_#Ultimate.C_memset_#amount|) (forall ((|v_#Ultimate.C_memset_#t~loopctr188_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr188| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr188|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr188_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (forall ((|v_#Ultimate.C_memset_#t~loopctr188_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr188| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr188_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr188_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr188_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$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_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)))))) is different from false [2021-11-19 14:51:40,023 WARN L227 SmtUtils]: Spent 59.32s on a formula simplification. DAG size of input: 101 DAG size of output: 85 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 14:51:42,031 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|)) (not (bvult (_ bv6 32) |c_#Ultimate.C_memset_#amount|)) (bvult (_ bv5 32) |c_#Ultimate.C_memset_#amount|)) is different from false [2021-11-19 14:53:09,959 WARN L227 SmtUtils]: Spent 33.71s on a formula simplification. DAG size of input: 91 DAG size of output: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)