./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:37:50,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:37:50,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:37:50,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:37:50,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:37:50,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:37:50,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:37:50,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:37:50,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:37:50,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:37:50,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:37:50,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:37:50,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:37:50,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:37:50,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:37:50,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:37:50,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:37:50,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:37:50,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:37:50,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:37:50,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:37:50,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:37:50,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:37:50,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:37:50,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:37:50,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:37:50,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:37:50,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:37:50,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:37:50,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:37:50,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:37:50,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:37:50,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:37:50,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:37:50,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:37:50,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:37:50,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:37:50,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:37:50,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:37:50,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:37:50,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:37:50,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-13 02:37:50,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:37:50,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:37:50,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:37:50,123 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:37:50,124 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:37:50,124 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:37:50,124 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:37:50,124 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:37:50,125 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:37:50,125 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:37:50,125 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:37:50,125 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:37:50,125 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:37:50,126 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:37:50,126 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:37:50,126 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:37:50,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 02:37:50,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 02:37:50,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:37:50,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:37:50,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 02:37:50,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:37:50,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:37:50,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:37:50,129 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 02:37:50,129 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 02:37:50,129 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 02:37:50,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:37:50,130 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:37:50,130 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:37:50,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:37:50,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:37:50,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:37:50,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:37:50,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:37:50,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:37:50,132 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:37:50,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:37:50,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:37:50,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:37:50,133 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_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2021-11-13 02:37:50,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:37:50,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:37:50,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:37:50,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:37:50,448 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:37:50,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2021-11-13 02:37:50,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/data/c22326c82/840dc002d00a4b9ba91b266f94b42c4b/FLAGe21ed4962 [2021-11-13 02:37:51,147 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:37:51,148 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2021-11-13 02:37:51,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/data/c22326c82/840dc002d00a4b9ba91b266f94b42c4b/FLAGe21ed4962 [2021-11-13 02:37:51,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/data/c22326c82/840dc002d00a4b9ba91b266f94b42c4b [2021-11-13 02:37:51,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:37:51,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:37:51,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:51,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:37:51,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:37:51,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:51" (1/1) ... [2021-11-13 02:37:51,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65daeb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:51, skipping insertion in model container [2021-11-13 02:37:51,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:51" (1/1) ... [2021-11-13 02:37:51,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:37:51,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:37:51,931 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034] [2021-11-13 02:37:52,078 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247] [2021-11-13 02:37:52,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:37:52,111 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 02:37:52,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@466e1a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:52, skipping insertion in model container [2021-11-13 02:37:52,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:52,112 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:37:52,115 INFO L158 Benchmark]: Toolchain (without parser) took 732.72ms. Allocated memory is still 104.9MB. Free memory was 82.2MB in the beginning and 65.0MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-13 02:37:52,117 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 60.1MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:37:52,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 730.12ms. Allocated memory is still 104.9MB. Free memory was 82.0MB in the beginning and 65.0MB in the end (delta: 17.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-13 02:37:52,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 60.1MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 730.12ms. Allocated memory is still 104.9MB. Free memory was 82.0MB in the beginning and 65.0MB in the end (delta: 17.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:37:54,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:37:54,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:37:54,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:37:54,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:37:54,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:37:54,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:37:54,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:37:54,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:37:54,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:37:54,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:37:54,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:37:54,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:37:54,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:37:54,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:37:54,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:37:54,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:37:54,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:37:54,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:37:54,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:37:54,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:37:54,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:37:54,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:37:54,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:37:54,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:37:54,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:37:54,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:37:54,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:37:54,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:37:54,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:37:54,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:37:54,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:37:54,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:37:54,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:37:54,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:37:54,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:37:54,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:37:54,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:37:54,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:37:54,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:37:54,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:37:54,539 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-13 02:37:54,571 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:37:54,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:37:54,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:37:54,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:37:54,576 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:37:54,576 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:37:54,576 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:37:54,576 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:37:54,577 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:37:54,577 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:37:54,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 02:37:54,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 02:37:54,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:37:54,580 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:37:54,580 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 02:37:54,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:37:54,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:37:54,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:37:54,581 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 02:37:54,581 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 02:37:54,582 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 02:37:54,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:37:54,582 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:37:54,582 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:37:54,583 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:37:54,583 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:37:54,583 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:37:54,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:37:54,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:37:54,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:37:54,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:37:54,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:37:54,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:37:54,585 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:37:54,585 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:37:54,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:37:54,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:37:54,586 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_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2021-11-13 02:37:54,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:37:55,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:37:55,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:37:55,011 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:37:55,012 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:37:55,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2021-11-13 02:37:55,092 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/data/1ece0cf36/ccebf224914241f2b0799d2448f28c2a/FLAG29fb74fde [2021-11-13 02:37:55,965 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:37:55,967 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2021-11-13 02:37:55,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/data/1ece0cf36/ccebf224914241f2b0799d2448f28c2a/FLAG29fb74fde [2021-11-13 02:37:56,045 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/data/1ece0cf36/ccebf224914241f2b0799d2448f28c2a [2021-11-13 02:37:56,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:37:56,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:37:56,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:56,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:37:56,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:37:56,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:56" (1/1) ... [2021-11-13 02:37:56,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@410ba843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:56, skipping insertion in model container [2021-11-13 02:37:56,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:56" (1/1) ... [2021-11-13 02:37:56,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:37:56,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:37:56,593 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034] [2021-11-13 02:37:56,701 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247] [2021-11-13 02:37:56,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:37:56,722 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:37:56,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:37:56,755 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034] [2021-11-13 02:37:56,827 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247] [2021-11-13 02:37:56,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:37:56,846 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:37:56,908 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034] [2021-11-13 02:37:56,965 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247] [2021-11-13 02:37:56,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:37:57,025 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:37:57,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57 WrapperNode [2021-11-13 02:37:57,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:57,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:37:57,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:37:57,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:37:57,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (1/1) ... [2021-11-13 02:37:57,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (1/1) ... [2021-11-13 02:37:57,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:37:57,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:37:57,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:37:57,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:37:57,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (1/1) ... [2021-11-13 02:37:57,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (1/1) ... [2021-11-13 02:37:57,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (1/1) ... [2021-11-13 02:37:57,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (1/1) ... [2021-11-13 02:37:57,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (1/1) ... [2021-11-13 02:37:57,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (1/1) ... [2021-11-13 02:37:57,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (1/1) ... [2021-11-13 02:37:57,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:37:57,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:37:57,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:37:57,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:37:57,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (1/1) ... [2021-11-13 02:37:57,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:37:57,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:37:57,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:37:57,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:37:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:37:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:37:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 02:37:57,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 02:37:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 02:37:57,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 02:37:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-13 02:37:57,480 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-13 02:37:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:37:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:37:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:37:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-13 02:37:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:37:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:37:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:37:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:37:57,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:37:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:37:57,762 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-13 02:38:03,156 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:38:03,164 INFO L299 CfgBuilder]: Removed 62 assume(true) statements. [2021-11-13 02:38:03,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:38:03 BoogieIcfgContainer [2021-11-13 02:38:03,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:38:03,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:38:03,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:38:03,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:38:03,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:37:56" (1/3) ... [2021-11-13 02:38:03,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da10e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:38:03, skipping insertion in model container [2021-11-13 02:38:03,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:57" (2/3) ... [2021-11-13 02:38:03,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da10e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:38:03, skipping insertion in model container [2021-11-13 02:38:03,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:38:03" (3/3) ... [2021-11-13 02:38:03,180 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test8-1.i [2021-11-13 02:38:03,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:38:03,188 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 536 error locations. [2021-11-13 02:38:03,247 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:38:03,265 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:38:03,266 INFO L340 AbstractCegarLoop]: Starting to check reachability of 536 error locations. [2021-11-13 02:38:03,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 1097 states, 540 states have (on average 2.240740740740741) internal successors, (1210), 1088 states have internal predecessors, (1210), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 02:38:03,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-13 02:38:03,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:03,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-13 02:38:03,320 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:03,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:03,331 INFO L85 PathProgramCache]: Analyzing trace with hash 132136, now seen corresponding path program 1 times [2021-11-13 02:38:03,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:03,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541306845] [2021-11-13 02:38:03,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:03,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:03,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:03,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:03,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:38:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:03,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:38:03,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:03,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:38:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:03,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:03,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:03,695 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:03,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541306845] [2021-11-13 02:38:03,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541306845] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:03,696 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:03,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:38:03,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985442736] [2021-11-13 02:38:03,699 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:03,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:38:03,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:03,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:38:03,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:03,750 INFO L87 Difference]: Start difference. First operand has 1097 states, 540 states have (on average 2.240740740740741) internal successors, (1210), 1088 states have internal predecessors, (1210), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:05,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:05,802 INFO L93 Difference]: Finished difference Result 1100 states and 1186 transitions. [2021-11-13 02:38:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:38:05,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-13 02:38:05,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:05,838 INFO L225 Difference]: With dead ends: 1100 [2021-11-13 02:38:05,838 INFO L226 Difference]: Without dead ends: 1098 [2021-11-13 02:38:05,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:05,844 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 971 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1573.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.80ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1936.79ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:05,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [975 Valid, 825 Invalid, 565 Unknown, 0 Unchecked, 20.80ms Time], IncrementalHoareTripleChecker [16 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 1936.79ms Time] [2021-11-13 02:38:05,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2021-11-13 02:38:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1086. [2021-11-13 02:38:05,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 543 states have (on average 2.0902394106813995) internal successors, (1135), 1076 states have internal predecessors, (1135), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-13 02:38:05,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1177 transitions. [2021-11-13 02:38:05,983 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1177 transitions. Word has length 3 [2021-11-13 02:38:05,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:05,984 INFO L470 AbstractCegarLoop]: Abstraction has 1086 states and 1177 transitions. [2021-11-13 02:38:05,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:05,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1177 transitions. [2021-11-13 02:38:05,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-13 02:38:05,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:05,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-13 02:38:05,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:06,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:06,189 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:06,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:06,190 INFO L85 PathProgramCache]: Analyzing trace with hash 132137, now seen corresponding path program 1 times [2021-11-13 02:38:06,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:06,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874675696] [2021-11-13 02:38:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:06,192 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:06,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:06,193 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:06,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:38:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:06,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:38:06,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:06,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:38:06,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:06,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:06,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:06,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:06,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874675696] [2021-11-13 02:38:06,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874675696] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:06,440 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:06,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-13 02:38:06,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257792790] [2021-11-13 02:38:06,441 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:06,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:38:06,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:06,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:38:06,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:06,443 INFO L87 Difference]: Start difference. First operand 1086 states and 1177 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:11,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:11,512 INFO L93 Difference]: Finished difference Result 1562 states and 1687 transitions. [2021-11-13 02:38:11,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:38:11,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 3 [2021-11-13 02:38:11,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:11,522 INFO L225 Difference]: With dead ends: 1562 [2021-11-13 02:38:11,523 INFO L226 Difference]: Without dead ends: 1562 [2021-11-13 02:38:11,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:11,525 INFO L933 BasicCegarLoop]: 832 mSDtfsCounter, 1136 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4255.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.14ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4969.84ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:11,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 1749 Invalid, 1101 Unknown, 0 Unchecked, 24.14ms Time], IncrementalHoareTripleChecker [18 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 4969.84ms Time] [2021-11-13 02:38:11,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2021-11-13 02:38:11,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1125. [2021-11-13 02:38:11,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 590 states have (on average 2.0694915254237287) internal successors, (1221), 1114 states have internal predecessors, (1221), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:38:11,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1265 transitions. [2021-11-13 02:38:11,572 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1265 transitions. Word has length 3 [2021-11-13 02:38:11,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:11,573 INFO L470 AbstractCegarLoop]: Abstraction has 1125 states and 1265 transitions. [2021-11-13 02:38:11,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:11,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1265 transitions. [2021-11-13 02:38:11,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 02:38:11,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:11,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:11,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:11,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:11,785 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:11,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:11,786 INFO L85 PathProgramCache]: Analyzing trace with hash -846217710, now seen corresponding path program 1 times [2021-11-13 02:38:11,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:11,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9817483] [2021-11-13 02:38:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:11,788 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:11,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:11,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:11,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:38:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:11,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:38:11,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:11,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:38:11,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:11,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:11,980 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:11,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9817483] [2021-11-13 02:38:11,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9817483] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:11,981 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:11,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:38:11,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056912703] [2021-11-13 02:38:11,981 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:11,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:38:11,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:11,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:38:11,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:11,983 INFO L87 Difference]: Start difference. First operand 1125 states and 1265 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:14,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:14,249 INFO L93 Difference]: Finished difference Result 1450 states and 1612 transitions. [2021-11-13 02:38:14,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:38:14,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 8 [2021-11-13 02:38:14,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:14,258 INFO L225 Difference]: With dead ends: 1450 [2021-11-13 02:38:14,258 INFO L226 Difference]: Without dead ends: 1450 [2021-11-13 02:38:14,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:14,260 INFO L933 BasicCegarLoop]: 995 mSDtfsCounter, 990 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1840.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.04ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2200.72ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:14,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 1300 Invalid, 770 Unknown, 0 Unchecked, 15.04ms Time], IncrementalHoareTripleChecker [54 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 2200.72ms Time] [2021-11-13 02:38:14,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2021-11-13 02:38:14,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1078. [2021-11-13 02:38:14,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 590 states have (on average 1.9813559322033898) internal successors, (1169), 1067 states have internal predecessors, (1169), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-13 02:38:14,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1213 transitions. [2021-11-13 02:38:14,297 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1213 transitions. Word has length 8 [2021-11-13 02:38:14,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:14,297 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 1213 transitions. [2021-11-13 02:38:14,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:14,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1213 transitions. [2021-11-13 02:38:14,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 02:38:14,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:14,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:14,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:14,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:14,510 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:14,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:14,511 INFO L85 PathProgramCache]: Analyzing trace with hash -846217709, now seen corresponding path program 1 times [2021-11-13 02:38:14,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:14,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236855296] [2021-11-13 02:38:14,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:14,512 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:14,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:14,515 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:14,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:38:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:14,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:38:14,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:14,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:38:14,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:14,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:14,813 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:14,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236855296] [2021-11-13 02:38:14,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236855296] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:14,813 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:14,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-13 02:38:14,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56737386] [2021-11-13 02:38:14,814 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:14,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:38:14,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:14,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:38:14,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:14,815 INFO L87 Difference]: Start difference. First operand 1078 states and 1213 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:18,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:18,874 INFO L93 Difference]: Finished difference Result 1509 states and 1633 transitions. [2021-11-13 02:38:18,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:38:18,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 8 [2021-11-13 02:38:18,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:18,892 INFO L225 Difference]: With dead ends: 1509 [2021-11-13 02:38:18,893 INFO L226 Difference]: Without dead ends: 1509 [2021-11-13 02:38:18,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:18,894 INFO L933 BasicCegarLoop]: 1182 mSDtfsCounter, 1416 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3454.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.55ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3998.18ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:18,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1419 Valid, 1667 Invalid, 791 Unknown, 0 Unchecked, 19.55ms Time], IncrementalHoareTripleChecker [18 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 3998.18ms Time] [2021-11-13 02:38:18,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2021-11-13 02:38:18,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1276. [2021-11-13 02:38:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 797 states have (on average 1.9786700125470515) internal successors, (1577), 1264 states have internal predecessors, (1577), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:38:18,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1623 transitions. [2021-11-13 02:38:18,936 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1623 transitions. Word has length 8 [2021-11-13 02:38:18,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:18,937 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 1623 transitions. [2021-11-13 02:38:18,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:18,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1623 transitions. [2021-11-13 02:38:18,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 02:38:18,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:18,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:18,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:19,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:19,150 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr534ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:19,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:19,150 INFO L85 PathProgramCache]: Analyzing trace with hash -652228184, now seen corresponding path program 1 times [2021-11-13 02:38:19,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:19,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366456338] [2021-11-13 02:38:19,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:19,151 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:19,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:19,152 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:19,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:38:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:19,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:38:19,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:19,308 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:38:19,309 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:38:19,310 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 02:38:19,369 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-13 02:38:19,369 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 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-13 02:38:19,454 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-13 02:38:19,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-13 02:38:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:19,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:19,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:19,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366456338] [2021-11-13 02:38:19,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366456338] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:19,543 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:19,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 02:38:19,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027098522] [2021-11-13 02:38:19,543 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:19,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:38:19,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:19,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:38:19,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:38:19,545 INFO L87 Difference]: Start difference. First operand 1276 states and 1623 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:21,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:21,736 INFO L93 Difference]: Finished difference Result 1786 states and 2342 transitions. [2021-11-13 02:38:21,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:38:21,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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 10 [2021-11-13 02:38:21,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:21,746 INFO L225 Difference]: With dead ends: 1786 [2021-11-13 02:38:21,747 INFO L226 Difference]: Without dead ends: 1786 [2021-11-13 02:38:21,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:38:21,748 INFO L933 BasicCegarLoop]: 1048 mSDtfsCounter, 356 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1835.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.67ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2125.40ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:21,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 3970 Invalid, 414 Unknown, 0 Unchecked, 8.67ms Time], IncrementalHoareTripleChecker [2 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 2125.40ms Time] [2021-11-13 02:38:21,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-11-13 02:38:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1276. [2021-11-13 02:38:21,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 797 states have (on average 1.9774153074027603) internal successors, (1576), 1264 states have internal predecessors, (1576), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:38:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1622 transitions. [2021-11-13 02:38:21,807 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1622 transitions. Word has length 10 [2021-11-13 02:38:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:21,808 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 1622 transitions. [2021-11-13 02:38:21,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:21,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1622 transitions. [2021-11-13 02:38:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 02:38:21,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:21,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:38:21,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-13 02:38:22,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:22,021 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:22,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:22,022 INFO L85 PathProgramCache]: Analyzing trace with hash -413650658, now seen corresponding path program 1 times [2021-11-13 02:38:22,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:22,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457820263] [2021-11-13 02:38:22,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:22,023 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:22,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:22,024 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:22,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:38:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:22,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:38:22,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:22,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:22,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:22,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:22,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457820263] [2021-11-13 02:38:22,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457820263] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:22,262 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:22,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 02:38:22,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745861056] [2021-11-13 02:38:22,262 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:22,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:38:22,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:22,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:38:22,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:22,264 INFO L87 Difference]: Start difference. First operand 1276 states and 1622 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:22,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:22,308 INFO L93 Difference]: Finished difference Result 1243 states and 1588 transitions. [2021-11-13 02:38:22,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:38:22,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 18 [2021-11-13 02:38:22,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:22,317 INFO L225 Difference]: With dead ends: 1243 [2021-11-13 02:38:22,317 INFO L226 Difference]: Without dead ends: 1243 [2021-11-13 02:38:22,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:22,321 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 966 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.27ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:22,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 1238 Invalid, 14 Unknown, 0 Unchecked, 3.73ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 21.27ms Time] [2021-11-13 02:38:22,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2021-11-13 02:38:22,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1234. [2021-11-13 02:38:22,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 779 states have (on average 1.9679075738125802) internal successors, (1533), 1222 states have internal predecessors, (1533), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:38:22,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1579 transitions. [2021-11-13 02:38:22,363 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1579 transitions. Word has length 18 [2021-11-13 02:38:22,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:22,364 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 1579 transitions. [2021-11-13 02:38:22,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:22,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1579 transitions. [2021-11-13 02:38:22,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:38:22,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:22,365 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] [2021-11-13 02:38:22,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:22,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:22,589 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:22,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:22,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1913675577, now seen corresponding path program 1 times [2021-11-13 02:38:22,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:22,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919831895] [2021-11-13 02:38:22,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:22,593 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:22,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:22,596 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:22,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:38:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:22,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:38:22,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:22,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:22,862 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:22,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919831895] [2021-11-13 02:38:22,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919831895] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:22,862 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:22,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-13 02:38:22,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74235015] [2021-11-13 02:38:22,863 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:22,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:38:22,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:22,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:38:22,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:38:22,864 INFO L87 Difference]: Start difference. First operand 1234 states and 1579 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:22,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:22,973 INFO L93 Difference]: Finished difference Result 1222 states and 1560 transitions. [2021-11-13 02:38:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:38:22,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 20 [2021-11-13 02:38:22,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:22,981 INFO L225 Difference]: With dead ends: 1222 [2021-11-13 02:38:22,981 INFO L226 Difference]: Without dead ends: 1222 [2021-11-13 02:38:22,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:38:22,983 INFO L933 BasicCegarLoop]: 1009 mSDtfsCounter, 1864 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.74ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.84ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:22,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1869 Valid, 2103 Invalid, 81 Unknown, 0 Unchecked, 6.74ms Time], IncrementalHoareTripleChecker [47 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 76.84ms Time] [2021-11-13 02:38:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-11-13 02:38:23,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1212. [2021-11-13 02:38:23,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 771 states have (on average 1.9507133592736705) internal successors, (1504), 1200 states have internal predecessors, (1504), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:38:23,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1550 transitions. [2021-11-13 02:38:23,017 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1550 transitions. Word has length 20 [2021-11-13 02:38:23,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:23,017 INFO L470 AbstractCegarLoop]: Abstraction has 1212 states and 1550 transitions. [2021-11-13 02:38:23,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:23,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1550 transitions. [2021-11-13 02:38:23,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 02:38:23,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:23,020 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] [2021-11-13 02:38:23,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:23,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:23,232 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:23,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:23,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1224753126, now seen corresponding path program 1 times [2021-11-13 02:38:23,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:23,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514421698] [2021-11-13 02:38:23,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:23,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:23,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:23,236 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:23,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:38:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:23,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:38:23,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:23,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:38:23,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:23,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:23,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:23,700 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:23,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514421698] [2021-11-13 02:38:23,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514421698] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:23,700 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:23,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:38:23,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258328228] [2021-11-13 02:38:23,701 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:23,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:38:23,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:23,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:38:23,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:23,702 INFO L87 Difference]: Start difference. First operand 1212 states and 1550 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:25,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:25,633 INFO L93 Difference]: Finished difference Result 1802 states and 2373 transitions. [2021-11-13 02:38:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:38:25,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-11-13 02:38:25,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:25,643 INFO L225 Difference]: With dead ends: 1802 [2021-11-13 02:38:25,643 INFO L226 Difference]: Without dead ends: 1802 [2021-11-13 02:38:25,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:38:25,645 INFO L933 BasicCegarLoop]: 563 mSDtfsCounter, 2108 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1576.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.60ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1875.54ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:25,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2110 Valid, 999 Invalid, 786 Unknown, 0 Unchecked, 7.60ms Time], IncrementalHoareTripleChecker [23 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 1875.54ms Time] [2021-11-13 02:38:25,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2021-11-13 02:38:25,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1208. [2021-11-13 02:38:25,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 771 states have (on average 1.9455252918287937) internal successors, (1500), 1196 states have internal predecessors, (1500), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:38:25,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1546 transitions. [2021-11-13 02:38:25,680 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1546 transitions. Word has length 34 [2021-11-13 02:38:25,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:25,681 INFO L470 AbstractCegarLoop]: Abstraction has 1208 states and 1546 transitions. [2021-11-13 02:38:25,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:25,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1546 transitions. [2021-11-13 02:38:25,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 02:38:25,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:25,682 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] [2021-11-13 02:38:25,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-13 02:38:25,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:25,897 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:25,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:25,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1224753127, now seen corresponding path program 1 times [2021-11-13 02:38:25,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:25,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062388416] [2021-11-13 02:38:25,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:25,899 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:25,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:25,900 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:25,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 02:38:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:26,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:38:26,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:26,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:38:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:26,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:26,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:26,861 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:26,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062388416] [2021-11-13 02:38:26,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062388416] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:26,861 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:26,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 02:38:26,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047113524] [2021-11-13 02:38:26,862 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:26,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:38:26,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:26,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:38:26,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:38:26,863 INFO L87 Difference]: Start difference. First operand 1208 states and 1546 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:34,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:34,657 INFO L93 Difference]: Finished difference Result 1449 states and 1564 transitions. [2021-11-13 02:38:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:38:34,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 34 [2021-11-13 02:38:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:34,667 INFO L225 Difference]: With dead ends: 1449 [2021-11-13 02:38:34,667 INFO L226 Difference]: Without dead ends: 1449 [2021-11-13 02:38:34,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:38:34,669 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 1263 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6799.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.80ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7660.97ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:34,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 2645 Invalid, 1988 Unknown, 0 Unchecked, 14.80ms Time], IncrementalHoareTripleChecker [14 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 7660.97ms Time] [2021-11-13 02:38:34,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2021-11-13 02:38:34,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1204. [2021-11-13 02:38:34,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 771 states have (on average 1.940337224383917) internal successors, (1496), 1192 states have internal predecessors, (1496), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:38:34,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1542 transitions. [2021-11-13 02:38:34,704 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1542 transitions. Word has length 34 [2021-11-13 02:38:34,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:34,705 INFO L470 AbstractCegarLoop]: Abstraction has 1204 states and 1542 transitions. [2021-11-13 02:38:34,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:34,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1542 transitions. [2021-11-13 02:38:34,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-13 02:38:34,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:34,708 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] [2021-11-13 02:38:34,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:34,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:34,921 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:34,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1045534242, now seen corresponding path program 1 times [2021-11-13 02:38:34,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:34,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923708111] [2021-11-13 02:38:34,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:34,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:34,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:34,931 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:34,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 02:38:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:35,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:38:35,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:35,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:35,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:35,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:35,385 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:35,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923708111] [2021-11-13 02:38:35,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923708111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:35,385 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:35,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 02:38:35,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706588504] [2021-11-13 02:38:35,386 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:35,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:38:35,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:35,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:38:35,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:38:35,387 INFO L87 Difference]: Start difference. First operand 1204 states and 1542 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:35,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:35,459 INFO L93 Difference]: Finished difference Result 1207 states and 1541 transitions. [2021-11-13 02:38:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:38:35,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2021-11-13 02:38:35,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:35,467 INFO L225 Difference]: With dead ends: 1207 [2021-11-13 02:38:35,467 INFO L226 Difference]: Without dead ends: 1207 [2021-11-13 02:38:35,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:38:35,468 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 913 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.41ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.58ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:35,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 2081 Invalid, 43 Unknown, 0 Unchecked, 4.41ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 45.58ms Time] [2021-11-13 02:38:35,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2021-11-13 02:38:35,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1198. [2021-11-13 02:38:35,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 765 states have (on average 1.942483660130719) internal successors, (1486), 1186 states have internal predecessors, (1486), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:38:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1532 transitions. [2021-11-13 02:38:35,501 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1532 transitions. Word has length 49 [2021-11-13 02:38:35,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:35,502 INFO L470 AbstractCegarLoop]: Abstraction has 1198 states and 1532 transitions. [2021-11-13 02:38:35,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:35,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1532 transitions. [2021-11-13 02:38:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-13 02:38:35,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:35,509 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] [2021-11-13 02:38:35,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:35,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:35,722 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:35,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:35,723 INFO L85 PathProgramCache]: Analyzing trace with hash -551406574, now seen corresponding path program 1 times [2021-11-13 02:38:35,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:35,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645598126] [2021-11-13 02:38:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:35,724 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:35,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:35,725 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:35,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 02:38:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:35,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:38:35,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:36,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:36,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:36,814 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:36,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645598126] [2021-11-13 02:38:36,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645598126] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:36,814 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:36,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 02:38:36,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812456923] [2021-11-13 02:38:36,814 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:36,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:38:36,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:36,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:38:36,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:36,816 INFO L87 Difference]: Start difference. First operand 1198 states and 1532 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:37,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:37,072 INFO L93 Difference]: Finished difference Result 1738 states and 2267 transitions. [2021-11-13 02:38:37,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:38:37,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2021-11-13 02:38:37,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:37,083 INFO L225 Difference]: With dead ends: 1738 [2021-11-13 02:38:37,084 INFO L226 Difference]: Without dead ends: 1738 [2021-11-13 02:38:37,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:38:37,085 INFO L933 BasicCegarLoop]: 1212 mSDtfsCounter, 407 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 195.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.76ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 236.84ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:37,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 2072 Invalid, 110 Unknown, 0 Unchecked, 2.76ms Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 236.84ms Time] [2021-11-13 02:38:37,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2021-11-13 02:38:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1559. [2021-11-13 02:38:37,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1124 states have (on average 1.9252669039145907) internal successors, (2164), 1545 states have internal predecessors, (2164), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-13 02:38:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2214 transitions. [2021-11-13 02:38:37,125 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2214 transitions. Word has length 57 [2021-11-13 02:38:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:37,126 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 2214 transitions. [2021-11-13 02:38:37,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:37,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2214 transitions. [2021-11-13 02:38:37,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-13 02:38:37,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:37,127 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] [2021-11-13 02:38:37,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:37,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:37,341 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:37,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1189287633, now seen corresponding path program 1 times [2021-11-13 02:38:37,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:37,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828327808] [2021-11-13 02:38:37,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:37,344 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:37,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:37,345 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:37,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 02:38:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:37,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:38:37,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:37,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:38:37,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:38:38,471 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 02:38:38,472 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 25 treesize of output 27 [2021-11-13 02:38:38,489 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:38:38,490 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 24 treesize of output 20 [2021-11-13 02:38:38,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:38,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:43,547 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:43,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828327808] [2021-11-13 02:38:43,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828327808] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:43,548 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:43,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 02:38:43,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102479170] [2021-11-13 02:38:43,548 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:43,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:38:43,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:43,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:38:43,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-13 02:38:43,550 INFO L87 Difference]: Start difference. First operand 1559 states and 2214 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:49,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:49,026 INFO L93 Difference]: Finished difference Result 2164 states and 2912 transitions. [2021-11-13 02:38:49,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:38:49,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 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 60 [2021-11-13 02:38:49,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:49,037 INFO L225 Difference]: With dead ends: 2164 [2021-11-13 02:38:49,037 INFO L226 Difference]: Without dead ends: 2164 [2021-11-13 02:38:49,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-13 02:38:49,038 INFO L933 BasicCegarLoop]: 754 mSDtfsCounter, 1500 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4500.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.87ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1486 IncrementalHoareTripleChecker+Unchecked, 5377.20ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:49,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 2152 Invalid, 3013 Unknown, 0 Unchecked, 16.87ms Time], IncrementalHoareTripleChecker [43 Valid, 1484 Invalid, 0 Unknown, 1486 Unchecked, 5377.20ms Time] [2021-11-13 02:38:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2021-11-13 02:38:49,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 1171. [2021-11-13 02:38:49,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 772 states have (on average 1.8264248704663213) internal successors, (1410), 1159 states have internal predecessors, (1410), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:38:49,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1456 transitions. [2021-11-13 02:38:49,071 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1456 transitions. Word has length 60 [2021-11-13 02:38:49,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:49,072 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1456 transitions. [2021-11-13 02:38:49,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:49,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1456 transitions. [2021-11-13 02:38:49,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-13 02:38:49,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:49,073 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] [2021-11-13 02:38:49,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-13 02:38:49,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:49,293 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:49,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:49,293 INFO L85 PathProgramCache]: Analyzing trace with hash 444125234, now seen corresponding path program 1 times [2021-11-13 02:38:49,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:49,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371412079] [2021-11-13 02:38:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:49,294 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:49,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:49,295 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:49,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 02:38:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:49,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:38:49,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:49,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:49,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:49,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-13 02:38:50,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:50,167 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:50,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371412079] [2021-11-13 02:38:50,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371412079] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:50,167 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:50,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 02:38:50,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599028009] [2021-11-13 02:38:50,167 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:50,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:38:50,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:50,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:38:50,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:38:50,169 INFO L87 Difference]: Start difference. First operand 1171 states and 1456 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:52,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:52,099 INFO L93 Difference]: Finished difference Result 1169 states and 1454 transitions. [2021-11-13 02:38:52,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:38:52,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 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 62 [2021-11-13 02:38:52,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:52,106 INFO L225 Difference]: With dead ends: 1169 [2021-11-13 02:38:52,106 INFO L226 Difference]: Without dead ends: 1169 [2021-11-13 02:38:52,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:38:52,107 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1754 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1603.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.16ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1899.69ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:52,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1759 Valid, 710 Invalid, 461 Unknown, 0 Unchecked, 6.16ms Time], IncrementalHoareTripleChecker [20 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 1899.69ms Time] [2021-11-13 02:38:52,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2021-11-13 02:38:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1169. [2021-11-13 02:38:52,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 772 states have (on average 1.8238341968911918) internal successors, (1408), 1157 states have internal predecessors, (1408), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:38:52,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1454 transitions. [2021-11-13 02:38:52,132 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1454 transitions. Word has length 62 [2021-11-13 02:38:52,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:52,133 INFO L470 AbstractCegarLoop]: Abstraction has 1169 states and 1454 transitions. [2021-11-13 02:38:52,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:52,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1454 transitions. [2021-11-13 02:38:52,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-13 02:38:52,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:52,134 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] [2021-11-13 02:38:52,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-13 02:38:52,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:52,348 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:52,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:52,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1859054235, now seen corresponding path program 1 times [2021-11-13 02:38:52,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:52,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831268304] [2021-11-13 02:38:52,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:52,349 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:52,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:52,349 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:52,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 02:38:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:52,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:38:52,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:52,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:38:52,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-13 02:38:52,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-13 02:38:52,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:52,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:52,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:52,853 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:52,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831268304] [2021-11-13 02:38:52,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831268304] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:52,853 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:52,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 02:38:52,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617685933] [2021-11-13 02:38:52,854 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:52,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:38:52,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:52,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:38:52,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:38:52,854 INFO L87 Difference]: Start difference. First operand 1169 states and 1454 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:55,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:38:55,852 INFO L93 Difference]: Finished difference Result 1168 states and 1453 transitions. [2021-11-13 02:38:55,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:38:55,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 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 65 [2021-11-13 02:38:55,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:38:55,858 INFO L225 Difference]: With dead ends: 1168 [2021-11-13 02:38:55,858 INFO L226 Difference]: Without dead ends: 1168 [2021-11-13 02:38:55,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:38:55,859 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 4 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2516.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.41ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2933.51ms IncrementalHoareTripleChecker+Time [2021-11-13 02:38:55,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2552 Invalid, 1314 Unknown, 0 Unchecked, 8.41ms Time], IncrementalHoareTripleChecker [1 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 2933.51ms Time] [2021-11-13 02:38:55,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2021-11-13 02:38:55,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1168. [2021-11-13 02:38:55,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 772 states have (on average 1.822538860103627) internal successors, (1407), 1156 states have internal predecessors, (1407), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:38:55,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1453 transitions. [2021-11-13 02:38:55,888 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1453 transitions. Word has length 65 [2021-11-13 02:38:55,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:38:55,888 INFO L470 AbstractCegarLoop]: Abstraction has 1168 states and 1453 transitions. [2021-11-13 02:38:55,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:38:55,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1453 transitions. [2021-11-13 02:38:55,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-13 02:38:55,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:38:55,890 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] [2021-11-13 02:38:55,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-13 02:38:56,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:38:56,120 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:38:56,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:38:56,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1859054234, now seen corresponding path program 1 times [2021-11-13 02:38:56,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:38:56,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015621557] [2021-11-13 02:38:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:38:56,121 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:38:56,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:38:56,122 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:38:56,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 02:38:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:38:56,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 02:38:56,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:38:56,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:38:56,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-13 02:38:56,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 02:38:56,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-13 02:38:56,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-13 02:38:56,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:56,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:38:56,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:38:56,905 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:38:56,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015621557] [2021-11-13 02:38:56,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015621557] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:38:56,905 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:38:56,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 02:38:56,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179679537] [2021-11-13 02:38:56,906 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:38:56,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 02:38:56,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:38:56,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 02:38:56,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:38:56,907 INFO L87 Difference]: Start difference. First operand 1168 states and 1453 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:39:04,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:04,129 INFO L93 Difference]: Finished difference Result 1167 states and 1452 transitions. [2021-11-13 02:39:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:39:04,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 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 65 [2021-11-13 02:39:04,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:04,137 INFO L225 Difference]: With dead ends: 1167 [2021-11-13 02:39:04,137 INFO L226 Difference]: Without dead ends: 1167 [2021-11-13 02:39:04,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:39:04,138 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 4 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6389.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.51ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7129.99ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:04,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2583 Invalid, 1282 Unknown, 0 Unchecked, 9.51ms Time], IncrementalHoareTripleChecker [2 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 7129.99ms Time] [2021-11-13 02:39:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2021-11-13 02:39:04,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1167. [2021-11-13 02:39:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 771 states have (on average 1.8236057068741893) internal successors, (1406), 1155 states have internal predecessors, (1406), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 02:39:04,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1452 transitions. [2021-11-13 02:39:04,165 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1452 transitions. Word has length 65 [2021-11-13 02:39:04,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:04,166 INFO L470 AbstractCegarLoop]: Abstraction has 1167 states and 1452 transitions. [2021-11-13 02:39:04,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:39:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1452 transitions. [2021-11-13 02:39:04,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-13 02:39:04,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:04,168 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:04,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:04,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:04,382 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:39:04,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:04,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1441347596, now seen corresponding path program 1 times [2021-11-13 02:39:04,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:04,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461233293] [2021-11-13 02:39:04,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:04,384 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:04,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:04,385 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:04,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 02:39:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:04,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:39:04,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:04,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:04,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:04,987 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:04,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461233293] [2021-11-13 02:39:04,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461233293] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:39:04,987 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:39:04,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 02:39:04,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64107686] [2021-11-13 02:39:04,988 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:39:04,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:39:04,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:04,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:39:04,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:39:04,989 INFO L87 Difference]: Start difference. First operand 1167 states and 1452 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:39:05,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:05,107 INFO L93 Difference]: Finished difference Result 1177 states and 1465 transitions. [2021-11-13 02:39:05,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:39:05,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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 73 [2021-11-13 02:39:05,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:05,118 INFO L225 Difference]: With dead ends: 1177 [2021-11-13 02:39:05,119 INFO L226 Difference]: Without dead ends: 1177 [2021-11-13 02:39:05,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:39:05,120 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 11 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.09ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.42ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:05,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 1930 Invalid, 32 Unknown, 0 Unchecked, 2.09ms Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 78.42ms Time] [2021-11-13 02:39:05,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2021-11-13 02:39:05,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1177. [2021-11-13 02:39:05,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 779 states have (on average 1.8202824133504494) internal successors, (1418), 1164 states have internal predecessors, (1418), 23 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (24), 9 states have call predecessors, (24), 23 states have call successors, (24) [2021-11-13 02:39:05,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1465 transitions. [2021-11-13 02:39:05,161 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1465 transitions. Word has length 73 [2021-11-13 02:39:05,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:05,162 INFO L470 AbstractCegarLoop]: Abstraction has 1177 states and 1465 transitions. [2021-11-13 02:39:05,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:39:05,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1465 transitions. [2021-11-13 02:39:05,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 02:39:05,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:05,169 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:05,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:05,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:05,383 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:39:05,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:05,384 INFO L85 PathProgramCache]: Analyzing trace with hash 954167724, now seen corresponding path program 1 times [2021-11-13 02:39:05,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:05,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225441178] [2021-11-13 02:39:05,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:05,385 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:05,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:05,386 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:05,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-13 02:39:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:05,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:39:05,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:05,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:05,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:06,063 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:06,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225441178] [2021-11-13 02:39:06,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225441178] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:06,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1142914645] [2021-11-13 02:39:06,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:06,064 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:06,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:39:06,065 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:39:06,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-13 02:39:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:06,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:39:06,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:06,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:06,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1142914645] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:06,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442314392] [2021-11-13 02:39:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:39:06,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:39:06,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:39:06,637 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:39:06,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-13 02:39:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:39:06,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:39:06,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:07,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:07,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:07,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442314392] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:07,352 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:39:07,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-13 02:39:07,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768547478] [2021-11-13 02:39:07,352 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:39:07,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 02:39:07,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:39:07,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 02:39:07,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-13 02:39:07,354 INFO L87 Difference]: Start difference. First operand 1177 states and 1465 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:39:07,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:39:07,894 INFO L93 Difference]: Finished difference Result 1191 states and 1482 transitions. [2021-11-13 02:39:07,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 02:39:07,896 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 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 75 [2021-11-13 02:39:07,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:39:07,904 INFO L225 Difference]: With dead ends: 1191 [2021-11-13 02:39:07,904 INFO L226 Difference]: Without dead ends: 1185 [2021-11-13 02:39:07,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:39:07,905 INFO L933 BasicCegarLoop]: 966 mSDtfsCounter, 27 mSDsluCounter, 7684 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 209.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 8650 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.96ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 238.72ms IncrementalHoareTripleChecker+Time [2021-11-13 02:39:07,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 8650 Invalid, 144 Unknown, 0 Unchecked, 5.96ms Time], IncrementalHoareTripleChecker [27 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 238.72ms Time] [2021-11-13 02:39:07,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2021-11-13 02:39:07,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1183. [2021-11-13 02:39:07,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 785 states have (on average 1.8152866242038217) internal successors, (1425), 1170 states have internal predecessors, (1425), 23 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (24), 9 states have call predecessors, (24), 23 states have call successors, (24) [2021-11-13 02:39:07,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1472 transitions. [2021-11-13 02:39:07,935 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1472 transitions. Word has length 75 [2021-11-13 02:39:07,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:39:07,936 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1472 transitions. [2021-11-13 02:39:07,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:39:07,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1472 transitions. [2021-11-13 02:39:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 02:39:07,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:39:07,937 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:39:07,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:08,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:08,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-13 02:39:08,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:39:08,549 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-13 02:39:08,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:39:08,550 INFO L85 PathProgramCache]: Analyzing trace with hash -617730836, now seen corresponding path program 2 times [2021-11-13 02:39:08,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:39:08,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68914868] [2021-11-13 02:39:08,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:39:08,551 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:39:08,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:39:08,552 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:39:08,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-13 02:39:08,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:39:08,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:39:08,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:39:08,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:09,179 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:09,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:09,682 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:39:09,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68914868] [2021-11-13 02:39:09,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68914868] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:09,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2010192540] [2021-11-13 02:39:09,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:39:09,683 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:39:09,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:39:09,685 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:39:09,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-11-13 02:39:10,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:39:10,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:39:10,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:39:10,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:39:10,714 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:10,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:39:10,943 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:39:10,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2010192540] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:39:10,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325155967] [2021-11-13 02:39:10,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:39:10,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:39:10,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:39:10,944 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:39:10,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f7b2b3-34ec-4ad2-83fc-f430e8554a02/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-13 02:40:03,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:40:03,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:40:04,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 02:40:04,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:04,319 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:40:04,319 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 16 treesize of output 16 [2021-11-13 02:40:04,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 02:41:46,693 WARN L227 SmtUtils]: Spent 18.34s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 02:41:46,694 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-13 02:41:46,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 79 [2021-11-13 02:41:47,323 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-13 02:41:47,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 38 [2021-11-13 02:41:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:47,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:49,194 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-13 02:41:49,194 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 [2021-11-13 02:47:52,498 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-13 02:47:52,498 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 112 treesize of output 111 [2021-11-13 02:47:55,911 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_120| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$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_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ 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 [2021-11-13 02:48:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:48:17,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325155967] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:48:17,091 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:48:17,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-13 02:48:17,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493410790] [2021-11-13 02:48:17,091 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:48:17,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-13 02:48:17,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:48:17,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-13 02:48:17,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1523, Unknown=208, NotChecked=84, Total=1980 [2021-11-13 02:48:17,094 INFO L87 Difference]: Start difference. First operand 1183 states and 1472 transitions. Second operand has 45 states, 43 states have (on average 5.232558139534884) internal successors, (225), 43 states have internal predecessors, (225), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-13 02:48:21,340 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_120| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-13 02:49:36,026 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_118| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_118|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_83|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr237|)) is different from false [2021-11-13 02:50:13,089 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_116| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_84|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr237|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$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_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ 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 [2021-11-13 02:50:15,121 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_114| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_85|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ 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))))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr237|)) is different from false [2021-11-13 02:50:17,144 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr237|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_86|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_112| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$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_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ 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 [2021-11-13 02:50:19,198 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr237| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr237_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_109| (_ BitVec 32))) (not (= (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr237_108|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr237|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_86|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_87|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr237|)) is different from false [2021-11-13 02:51:37,906 WARN L227 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 78 DAG size of output: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)