./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:27:35,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:27:35,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:27:35,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:27:35,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:27:35,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:27:35,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:27:35,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:27:35,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:27:35,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:27:35,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:27:35,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:27:35,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:27:35,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:27:35,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:27:35,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:27:35,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:27:35,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:27:35,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:27:35,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:27:35,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:27:35,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:27:35,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:27:35,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:27:35,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:27:35,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:27:35,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:27:35,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:27:35,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:27:35,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:27:35,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:27:35,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:27:35,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:27:35,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:27:35,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:27:35,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:27:35,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:27:35,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:27:35,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:27:35,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:27:35,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:27:35,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-19 13:27:35,870 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:27:35,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:27:35,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:27:35,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:27:35,872 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:27:35,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:27:35,872 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:27:35,872 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:27:35,873 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:27:35,873 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:27:35,873 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:27:35,873 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:27:35,873 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:27:35,874 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:27:35,874 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:27:35,874 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:27:35,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 13:27:35,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 13:27:35,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:27:35,876 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:27:35,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:27:35,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:27:35,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:27:35,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:27:35,877 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 13:27:35,877 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 13:27:35,878 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 13:27:35,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:27:35,878 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:27:35,878 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:27:35,879 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:27:35,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:27:35,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:27:35,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:27:35,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:27:35,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:27:35,880 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:27:35,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:27:35,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:27:35,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:27:35,881 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_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2021-11-19 13:27:36,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:27:36,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:27:36,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:27:36,278 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:27:36,279 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:27:36,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2021-11-19 13:27:36,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/data/ead612564/39db534cd6284ed9999ec15e4dc1607a/FLAG58cb1f022 [2021-11-19 13:27:37,049 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:27:37,050 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2021-11-19 13:27:37,083 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/data/ead612564/39db534cd6284ed9999ec15e4dc1607a/FLAG58cb1f022 [2021-11-19 13:27:37,222 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/data/ead612564/39db534cd6284ed9999ec15e4dc1607a [2021-11-19 13:27:37,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:27:37,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:27:37,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:27:37,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:27:37,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:27:37,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:27:37" (1/1) ... [2021-11-19 13:27:37,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b73264a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:37, skipping insertion in model container [2021-11-19 13:27:37,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:27:37" (1/1) ... [2021-11-19 13:27:37,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:27:37,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:27:38,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2021-11-19 13:27:38,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2021-11-19 13:27:38,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2021-11-19 13:27:38,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2021-11-19 13:27:38,189 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:27:38,201 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:27:38,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@34cbf15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:38, skipping insertion in model container [2021-11-19 13:27:38,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:27:38,203 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:27:38,205 INFO L158 Benchmark]: Toolchain (without parser) took 978.47ms. Allocated memory is still 94.4MB. Free memory was 68.9MB in the beginning and 55.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 13:27:38,206 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 94.4MB. Free memory was 67.4MB in the beginning and 67.3MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:27:38,207 INFO L158 Benchmark]: CACSL2BoogieTranslator took 973.66ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 55.5MB in the end (delta: 13.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 13:27:38,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 94.4MB. Free memory was 67.4MB in the beginning and 67.3MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 973.66ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 55.5MB in the end (delta: 13.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: 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_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:27:40,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:27:40,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:27:40,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:27:40,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:27:40,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:27:40,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:27:40,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:27:40,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:27:40,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:27:40,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:27:40,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:27:40,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:27:40,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:27:40,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:27:40,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:27:40,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:27:40,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:27:40,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:27:40,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:27:40,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:27:40,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:27:40,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:27:40,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:27:40,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:27:40,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:27:40,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:27:40,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:27:40,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:27:40,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:27:40,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:27:40,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:27:40,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:27:40,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:27:40,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:27:40,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:27:40,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:27:40,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:27:40,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:27:40,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:27:40,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:27:40,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-19 13:27:40,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:27:40,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:27:40,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:27:40,788 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:27:40,788 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:27:40,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:27:40,788 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:27:40,789 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:27:40,789 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:27:40,789 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:27:40,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 13:27:40,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 13:27:40,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:27:40,791 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:27:40,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:27:40,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:27:40,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:27:40,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:27:40,792 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 13:27:40,792 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 13:27:40,792 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 13:27:40,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:27:40,793 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:27:40,793 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:27:40,793 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:27:40,793 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:27:40,793 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:27:40,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:27:40,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:27:40,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:27:40,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:27:40,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:27:40,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:27:40,795 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:27:40,795 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:27:40,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:27:40,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:27:40,797 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_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2021-11-19 13:27:41,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:27:41,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:27:41,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:27:41,241 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:27:41,242 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:27:41,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2021-11-19 13:27:41,343 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/data/0f04b563f/bcd337274f3f4e939ce3fa4279838091/FLAG2ed20aae9 [2021-11-19 13:27:42,172 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:27:42,172 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2021-11-19 13:27:42,197 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/data/0f04b563f/bcd337274f3f4e939ce3fa4279838091/FLAG2ed20aae9 [2021-11-19 13:27:42,305 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/data/0f04b563f/bcd337274f3f4e939ce3fa4279838091 [2021-11-19 13:27:42,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:27:42,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:27:42,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:27:42,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:27:42,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:27:42,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:27:42" (1/1) ... [2021-11-19 13:27:42,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@208b1ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:42, skipping insertion in model container [2021-11-19 13:27:42,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:27:42" (1/1) ... [2021-11-19 13:27:42,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:27:42,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:27:43,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2021-11-19 13:27:43,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2021-11-19 13:27:43,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2021-11-19 13:27:43,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2021-11-19 13:27:43,341 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:27:43,368 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:27:43,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:27:43,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2021-11-19 13:27:43,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2021-11-19 13:27:43,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2021-11-19 13:27:43,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2021-11-19 13:27:43,618 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:27:43,635 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:27:43,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2021-11-19 13:27:43,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2021-11-19 13:27:43,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2021-11-19 13:27:43,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2021-11-19 13:27:43,812 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:27:43,922 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:27:43,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43 WrapperNode [2021-11-19 13:27:43,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:27:43,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:27:43,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:27:43,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:27:43,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (1/1) ... [2021-11-19 13:27:44,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (1/1) ... [2021-11-19 13:27:44,124 INFO L137 Inliner]: procedures = 285, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1203 [2021-11-19 13:27:44,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:27:44,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:27:44,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:27:44,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:27:44,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (1/1) ... [2021-11-19 13:27:44,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (1/1) ... [2021-11-19 13:27:44,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (1/1) ... [2021-11-19 13:27:44,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (1/1) ... [2021-11-19 13:27:44,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (1/1) ... [2021-11-19 13:27:44,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (1/1) ... [2021-11-19 13:27:44,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (1/1) ... [2021-11-19 13:27:44,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:27:44,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:27:44,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:27:44,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:27:44,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (1/1) ... [2021-11-19 13:27:44,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:27:44,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:27:44,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:27:44,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:27:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:27:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:27:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:27:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 13:27:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:27:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:27:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:27:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:27:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-19 13:27:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-19 13:27:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 13:27:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 13:27:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:27:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:27:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-19 13:27:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-19 13:27:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:27:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-19 13:27:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-19 13:27:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:27:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:27:44,807 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:27:44,809 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:27:51,302 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:27:51,343 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:27:51,343 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-19 13:27:51,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:27:51 BoogieIcfgContainer [2021-11-19 13:27:51,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:27:51,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:27:51,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:27:51,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:27:51,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:27:42" (1/3) ... [2021-11-19 13:27:51,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25abbca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:27:51, skipping insertion in model container [2021-11-19 13:27:51,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:27:43" (2/3) ... [2021-11-19 13:27:51,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25abbca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:27:51, skipping insertion in model container [2021-11-19 13:27:51,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:27:51" (3/3) ... [2021-11-19 13:27:51,364 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2021-11-19 13:27:51,376 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:27:51,377 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 634 error locations. [2021-11-19 13:27:51,446 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:27:51,454 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:27:51,455 INFO L340 AbstractCegarLoop]: Starting to check reachability of 634 error locations. [2021-11-19 13:27:51,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 1280 states, 626 states have (on average 2.2444089456869007) internal successors, (1405), 1260 states have internal predecessors, (1405), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-19 13:27:51,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 13:27:51,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:51,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 13:27:51,511 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:27:51,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:51,518 INFO L85 PathProgramCache]: Analyzing trace with hash 77521, now seen corresponding path program 1 times [2021-11-19 13:27:51,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:51,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279029691] [2021-11-19 13:27:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:51,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:51,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:51,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:51,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:27:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:51,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:27:51,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:51,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:27:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:27:51,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:27:51,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:27:51,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:27:51,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279029691] [2021-11-19 13:27:51,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279029691] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:27:51,894 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:27:51,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:27:51,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513131857] [2021-11-19 13:27:51,899 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:27:51,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:27:51,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:27:51,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:27:51,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:27:51,955 INFO L87 Difference]: Start difference. First operand has 1280 states, 626 states have (on average 2.2444089456869007) internal successors, (1405), 1260 states have internal predecessors, (1405), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) 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) [2021-11-19 13:27:55,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:27:55,179 INFO L93 Difference]: Finished difference Result 1537 states and 1627 transitions. [2021-11-19 13:27:55,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:27:55,181 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 [2021-11-19 13:27:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:27:55,211 INFO L225 Difference]: With dead ends: 1537 [2021-11-19 13:27:55,211 INFO L226 Difference]: Without dead ends: 1535 [2021-11-19 13:27:55,213 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 [2021-11-19 13:27:55,217 INFO L933 BasicCegarLoop]: 911 mSDtfsCounter, 906 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:27:55,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 1258 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-19 13:27:55,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2021-11-19 13:27:55,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1300. [2021-11-19 13:27:55,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 660 states have (on average 2.106060606060606) internal successors, (1390), 1281 states have internal predecessors, (1390), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-19 13:27:55,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1420 transitions. [2021-11-19 13:27:55,378 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1420 transitions. Word has length 3 [2021-11-19 13:27:55,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:27:55,378 INFO L470 AbstractCegarLoop]: Abstraction has 1300 states and 1420 transitions. [2021-11-19 13:27:55,379 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) [2021-11-19 13:27:55,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1420 transitions. [2021-11-19 13:27:55,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 13:27:55,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:55,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 13:27:55,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 13:27:55,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:27:55,595 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:27:55,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:55,597 INFO L85 PathProgramCache]: Analyzing trace with hash 77522, now seen corresponding path program 1 times [2021-11-19 13:27:55,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:55,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258190593] [2021-11-19 13:27:55,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:55,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:55,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:55,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:55,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:27:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:55,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:27:55,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:55,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:27:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:27:55,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:27:55,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:27:55,861 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:27:55,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258190593] [2021-11-19 13:27:55,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258190593] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:27:55,862 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:27:55,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 13:27:55,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368851509] [2021-11-19 13:27:55,863 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:27:55,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:27:55,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:27:55,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:27:55,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:27:55,866 INFO L87 Difference]: Start difference. First operand 1300 states and 1420 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) [2021-11-19 13:28:01,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:01,941 INFO L93 Difference]: Finished difference Result 1927 states and 2053 transitions. [2021-11-19 13:28:01,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:28:01,942 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 [2021-11-19 13:28:01,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:01,954 INFO L225 Difference]: With dead ends: 1927 [2021-11-19 13:28:01,954 INFO L226 Difference]: Without dead ends: 1927 [2021-11-19 13:28:01,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:01,957 INFO L933 BasicCegarLoop]: 915 mSDtfsCounter, 2160 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:01,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2174 Valid, 1653 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2021-11-19 13:28:01,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2021-11-19 13:28:01,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1296. [2021-11-19 13:28:01,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 665 states have (on average 2.0842105263157893) internal successors, (1386), 1277 states have internal predecessors, (1386), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-19 13:28:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1416 transitions. [2021-11-19 13:28:02,005 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1416 transitions. Word has length 3 [2021-11-19 13:28:02,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:02,005 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 1416 transitions. [2021-11-19 13:28:02,006 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) [2021-11-19 13:28:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1416 transitions. [2021-11-19 13:28:02,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 13:28:02,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:02,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:28:02,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:02,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:02,219 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:02,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:02,220 INFO L85 PathProgramCache]: Analyzing trace with hash -102759776, now seen corresponding path program 1 times [2021-11-19 13:28:02,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:02,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722874526] [2021-11-19 13:28:02,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:02,221 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:02,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:02,223 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:02,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:28:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:02,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:28:02,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:02,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:28:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:02,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:02,519 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:02,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722874526] [2021-11-19 13:28:02,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722874526] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:02,519 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:02,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:28:02,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787585914] [2021-11-19 13:28:02,520 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:02,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:28:02,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:02,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:28:02,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:02,523 INFO L87 Difference]: Start difference. First operand 1296 states and 1416 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:07,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:07,609 INFO L93 Difference]: Finished difference Result 2252 states and 2407 transitions. [2021-11-19 13:28:07,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:28:07,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-19 13:28:07,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:07,625 INFO L225 Difference]: With dead ends: 2252 [2021-11-19 13:28:07,626 INFO L226 Difference]: Without dead ends: 2252 [2021-11-19 13:28:07,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:28:07,635 INFO L933 BasicCegarLoop]: 1308 mSDtfsCounter, 2320 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2326 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:07,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2326 Valid, 2554 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1784 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-11-19 13:28:07,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2021-11-19 13:28:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1251. [2021-11-19 13:28:07,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 665 states have (on average 2.01203007518797) internal successors, (1338), 1232 states have internal predecessors, (1338), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-19 13:28:07,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1368 transitions. [2021-11-19 13:28:07,693 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1368 transitions. Word has length 9 [2021-11-19 13:28:07,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:07,694 INFO L470 AbstractCegarLoop]: Abstraction has 1251 states and 1368 transitions. [2021-11-19 13:28:07,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:07,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1368 transitions. [2021-11-19 13:28:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 13:28:07,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:07,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:28:07,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:07,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:07,909 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:07,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:07,910 INFO L85 PathProgramCache]: Analyzing trace with hash -102759775, now seen corresponding path program 1 times [2021-11-19 13:28:07,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:07,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011828337] [2021-11-19 13:28:07,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:07,911 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:07,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:07,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:07,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:28:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:08,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:28:08,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:08,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:28:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:08,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:08,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:08,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:08,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011828337] [2021-11-19 13:28:08,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011828337] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:08,359 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:08,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 13:28:08,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923201350] [2021-11-19 13:28:08,360 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:08,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:28:08,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:08,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:28:08,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:28:08,361 INFO L87 Difference]: Start difference. First operand 1251 states and 1368 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:18,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:18,789 INFO L93 Difference]: Finished difference Result 1880 states and 2007 transitions. [2021-11-19 13:28:18,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:28:18,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 9 [2021-11-19 13:28:18,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:18,802 INFO L225 Difference]: With dead ends: 1880 [2021-11-19 13:28:18,803 INFO L226 Difference]: Without dead ends: 1880 [2021-11-19 13:28:18,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:28:18,804 INFO L933 BasicCegarLoop]: 1504 mSDtfsCounter, 2462 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:18,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2467 Valid, 3352 Invalid, 2315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2021-11-19 13:28:18,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2021-11-19 13:28:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1241. [2021-11-19 13:28:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 665 states have (on average 1.9924812030075187) internal successors, (1325), 1222 states have internal predecessors, (1325), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-19 13:28:18,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1355 transitions. [2021-11-19 13:28:18,850 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1355 transitions. Word has length 9 [2021-11-19 13:28:18,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:18,850 INFO L470 AbstractCegarLoop]: Abstraction has 1241 states and 1355 transitions. [2021-11-19 13:28:18,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:18,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1355 transitions. [2021-11-19 13:28:18,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 13:28:18,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:18,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:28:18,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:19,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:19,064 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr516ASSERT_VIOLATIONMEMORY_LEAK === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:19,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:19,065 INFO L85 PathProgramCache]: Analyzing trace with hash -856298529, now seen corresponding path program 1 times [2021-11-19 13:28:19,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:19,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34665981] [2021-11-19 13:28:19,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:19,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:19,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:19,067 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:19,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:28:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:19,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:28:19,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:19,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:19,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:19,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34665981] [2021-11-19 13:28:19,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34665981] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:19,379 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:19,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 13:28:19,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267189425] [2021-11-19 13:28:19,380 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:19,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:28:19,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:19,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:28:19,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:19,382 INFO L87 Difference]: Start difference. First operand 1241 states and 1355 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:20,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:20,427 INFO L93 Difference]: Finished difference Result 1885 states and 2048 transitions. [2021-11-19 13:28:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:28:20,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 13:28:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:20,439 INFO L225 Difference]: With dead ends: 1885 [2021-11-19 13:28:20,439 INFO L226 Difference]: Without dead ends: 1885 [2021-11-19 13:28:20,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:28:20,441 INFO L933 BasicCegarLoop]: 1438 mSDtfsCounter, 745 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:20,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 3832 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 13:28:20,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2021-11-19 13:28:20,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1487. [2021-11-19 13:28:20,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 908 states have (on average 1.9625550660792952) internal successors, (1782), 1465 states have internal predecessors, (1782), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 13:28:20,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1818 transitions. [2021-11-19 13:28:20,501 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1818 transitions. Word has length 11 [2021-11-19 13:28:20,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:20,501 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 1818 transitions. [2021-11-19 13:28:20,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1818 transitions. [2021-11-19 13:28:20,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 13:28:20,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:20,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:28:20,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:20,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:20,721 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:20,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:20,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2126591358, now seen corresponding path program 1 times [2021-11-19 13:28:20,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:20,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801523039] [2021-11-19 13:28:20,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:20,724 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:20,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:20,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:20,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:28:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:20,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:28:20,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:20,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:28:20,928 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:28:20,929 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:28:20,997 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-19 13:28:20,998 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 [2021-11-19 13:28:21,063 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-19 13:28:21,063 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 [2021-11-19 13:28:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:21,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:21,180 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:21,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801523039] [2021-11-19 13:28:21,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801523039] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:21,181 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:21,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 13:28:21,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165885414] [2021-11-19 13:28:21,182 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:21,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:28:21,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:21,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:28:21,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:28:21,183 INFO L87 Difference]: Start difference. First operand 1487 states and 1818 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:23,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:23,010 INFO L93 Difference]: Finished difference Result 1989 states and 2394 transitions. [2021-11-19 13:28:23,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:28:23,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-19 13:28:23,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:23,024 INFO L225 Difference]: With dead ends: 1989 [2021-11-19 13:28:23,024 INFO L226 Difference]: Without dead ends: 1989 [2021-11-19 13:28:23,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:28:23,025 INFO L933 BasicCegarLoop]: 1252 mSDtfsCounter, 996 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:23,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 3592 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-19 13:28:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2021-11-19 13:28:23,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1486. [2021-11-19 13:28:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 907 states have (on average 1.9625137816979052) internal successors, (1780), 1464 states have internal predecessors, (1780), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 13:28:23,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 1816 transitions. [2021-11-19 13:28:23,076 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 1816 transitions. Word has length 14 [2021-11-19 13:28:23,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:23,076 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 1816 transitions. [2021-11-19 13:28:23,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:23,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 1816 transitions. [2021-11-19 13:28:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-19 13:28:23,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:23,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:28:23,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-19 13:28:23,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:23,292 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:23,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:23,292 INFO L85 PathProgramCache]: Analyzing trace with hash 769788685, now seen corresponding path program 1 times [2021-11-19 13:28:23,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:23,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640805098] [2021-11-19 13:28:23,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:23,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:23,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:23,294 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:23,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:28:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:23,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:28:23,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:23,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:23,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:23,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:23,542 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:23,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640805098] [2021-11-19 13:28:23,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640805098] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:23,543 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:23,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:28:23,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867517147] [2021-11-19 13:28:23,543 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:23,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:28:23,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:23,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:28:23,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:23,545 INFO L87 Difference]: Start difference. First operand 1486 states and 1816 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:23,586 INFO L93 Difference]: Finished difference Result 1426 states and 1730 transitions. [2021-11-19 13:28:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:28:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 19 [2021-11-19 13:28:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:23,595 INFO L225 Difference]: With dead ends: 1426 [2021-11-19 13:28:23,595 INFO L226 Difference]: Without dead ends: 1426 [2021-11-19 13:28:23,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:23,597 INFO L933 BasicCegarLoop]: 1231 mSDtfsCounter, 1157 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:23,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 1369 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:28:23,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2021-11-19 13:28:23,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2021-11-19 13:28:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 871 states have (on average 1.9448909299655568) internal successors, (1694), 1404 states have internal predecessors, (1694), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 13:28:23,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1730 transitions. [2021-11-19 13:28:23,666 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1730 transitions. Word has length 19 [2021-11-19 13:28:23,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:23,667 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 1730 transitions. [2021-11-19 13:28:23,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:23,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1730 transitions. [2021-11-19 13:28:23,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-19 13:28:23,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:23,669 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] [2021-11-19 13:28:23,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:23,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:23,882 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:23,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:23,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1032548102, now seen corresponding path program 1 times [2021-11-19 13:28:23,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:23,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434200264] [2021-11-19 13:28:23,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:23,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:23,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:23,887 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:23,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:28:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:24,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:28:24,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:24,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:24,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:24,201 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:24,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434200264] [2021-11-19 13:28:24,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434200264] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:24,202 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:24,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 13:28:24,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23847211] [2021-11-19 13:28:24,203 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:24,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:28:24,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:24,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:28:24,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:28:24,204 INFO L87 Difference]: Start difference. First operand 1426 states and 1730 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:24,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:24,291 INFO L93 Difference]: Finished difference Result 1398 states and 1674 transitions. [2021-11-19 13:28:24,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:28:24,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 21 [2021-11-19 13:28:24,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:24,300 INFO L225 Difference]: With dead ends: 1398 [2021-11-19 13:28:24,301 INFO L226 Difference]: Without dead ends: 1398 [2021-11-19 13:28:24,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:28:24,302 INFO L933 BasicCegarLoop]: 1186 mSDtfsCounter, 1128 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:24,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 2503 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:28:24,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2021-11-19 13:28:24,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1396. [2021-11-19 13:28:24,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 855 states have (on average 1.9134502923976608) internal successors, (1636), 1374 states have internal predecessors, (1636), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 13:28:24,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1672 transitions. [2021-11-19 13:28:24,338 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1672 transitions. Word has length 21 [2021-11-19 13:28:24,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:24,339 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 1672 transitions. [2021-11-19 13:28:24,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:24,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1672 transitions. [2021-11-19 13:28:24,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-19 13:28:24,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:24,341 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] [2021-11-19 13:28:24,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-19 13:28:24,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:24,555 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:24,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:24,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1673308372, now seen corresponding path program 1 times [2021-11-19 13:28:24,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:24,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234867152] [2021-11-19 13:28:24,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:24,557 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:24,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:24,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:24,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:28:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:24,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:28:24,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:24,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:28:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:24,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:24,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:24,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234867152] [2021-11-19 13:28:24,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234867152] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:24,994 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:24,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 13:28:24,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231420357] [2021-11-19 13:28:24,995 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:24,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:28:24,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:24,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:28:24,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:28:24,996 INFO L87 Difference]: Start difference. First operand 1396 states and 1672 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:29,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:29,717 INFO L93 Difference]: Finished difference Result 2553 states and 3058 transitions. [2021-11-19 13:28:29,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:28:29,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2021-11-19 13:28:29,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:29,729 INFO L225 Difference]: With dead ends: 2553 [2021-11-19 13:28:29,729 INFO L226 Difference]: Without dead ends: 2553 [2021-11-19 13:28:29,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:28:29,730 INFO L933 BasicCegarLoop]: 1134 mSDtfsCounter, 2401 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2404 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 2382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:29,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2404 Valid, 2702 Invalid, 2382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2363 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-19 13:28:29,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2021-11-19 13:28:29,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 1392. [2021-11-19 13:28:29,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 855 states have (on average 1.904093567251462) internal successors, (1628), 1370 states have internal predecessors, (1628), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 13:28:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1664 transitions. [2021-11-19 13:28:29,771 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1664 transitions. Word has length 35 [2021-11-19 13:28:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:29,772 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 1664 transitions. [2021-11-19 13:28:29,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:29,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1664 transitions. [2021-11-19 13:28:29,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-19 13:28:29,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:29,773 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] [2021-11-19 13:28:29,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-19 13:28:29,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:29,985 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:29,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:29,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1673308373, now seen corresponding path program 1 times [2021-11-19 13:28:29,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:29,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564659565] [2021-11-19 13:28:29,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:29,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:29,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:29,988 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:29,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:28:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:30,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:28:30,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:30,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:28:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:30,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:31,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:31,085 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:31,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564659565] [2021-11-19 13:28:31,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564659565] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:31,085 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:31,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 13:28:31,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631708900] [2021-11-19 13:28:31,086 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:31,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:28:31,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:31,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:28:31,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:28:31,088 INFO L87 Difference]: Start difference. First operand 1392 states and 1664 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:44,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:44,922 INFO L93 Difference]: Finished difference Result 2203 states and 2643 transitions. [2021-11-19 13:28:44,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:28:44,922 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 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 35 [2021-11-19 13:28:44,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:44,934 INFO L225 Difference]: With dead ends: 2203 [2021-11-19 13:28:44,935 INFO L226 Difference]: Without dead ends: 2203 [2021-11-19 13:28:44,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:28:44,936 INFO L933 BasicCegarLoop]: 1538 mSDtfsCounter, 2182 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 3871 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 5065 SdHoareTripleChecker+Invalid, 3896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:44,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2182 Valid, 5065 Invalid, 3896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3871 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2021-11-19 13:28:44,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2021-11-19 13:28:44,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 1388. [2021-11-19 13:28:44,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 855 states have (on average 1.894736842105263) internal successors, (1620), 1366 states have internal predecessors, (1620), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 13:28:44,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1656 transitions. [2021-11-19 13:28:44,972 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1656 transitions. Word has length 35 [2021-11-19 13:28:44,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:44,972 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 1656 transitions. [2021-11-19 13:28:44,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:44,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1656 transitions. [2021-11-19 13:28:44,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-19 13:28:44,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:44,975 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] [2021-11-19 13:28:44,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:45,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:45,188 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_mallocErr0REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:45,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2063645645, now seen corresponding path program 1 times [2021-11-19 13:28:45,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:45,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260973866] [2021-11-19 13:28:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:45,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:45,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:45,192 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:45,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:28:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:45,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:28:45,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:45,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:45,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:45,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:45,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260973866] [2021-11-19 13:28:45,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260973866] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:45,738 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:45,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 13:28:45,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784109915] [2021-11-19 13:28:45,738 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:45,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:28:45,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:45,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:28:45,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:45,739 INFO L87 Difference]: Start difference. First operand 1388 states and 1656 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:45,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:45,801 INFO L93 Difference]: Finished difference Result 1376 states and 1636 transitions. [2021-11-19 13:28:45,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:28:45,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-19 13:28:45,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:45,810 INFO L225 Difference]: With dead ends: 1376 [2021-11-19 13:28:45,810 INFO L226 Difference]: Without dead ends: 1376 [2021-11-19 13:28:45,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:28:45,811 INFO L933 BasicCegarLoop]: 1180 mSDtfsCounter, 1104 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:45,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 2412 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:28:45,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2021-11-19 13:28:45,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1376. [2021-11-19 13:28:45,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 843 states have (on average 1.8979833926453145) internal successors, (1600), 1354 states have internal predecessors, (1600), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 13:28:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1636 transitions. [2021-11-19 13:28:45,842 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1636 transitions. Word has length 54 [2021-11-19 13:28:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:45,843 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 1636 transitions. [2021-11-19 13:28:45,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1636 transitions. [2021-11-19 13:28:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-19 13:28:45,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:45,846 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] [2021-11-19 13:28:45,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:46,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:46,061 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting alt_mallocErr0REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:46,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:46,061 INFO L85 PathProgramCache]: Analyzing trace with hash -202859289, now seen corresponding path program 1 times [2021-11-19 13:28:46,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:46,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173721629] [2021-11-19 13:28:46,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:46,064 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:46,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:46,065 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:46,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:28:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:46,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:28:46,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:46,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:28:46,438 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 13:28:46,438 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 16 treesize of output 21 [2021-11-19 13:28:46,570 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-11-19 13:28:46,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 46 [2021-11-19 13:28:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:47,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:47,452 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:47,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173721629] [2021-11-19 13:28:47,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173721629] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:47,453 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:47,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 13:28:47,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424378914] [2021-11-19 13:28:47,454 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:47,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:28:47,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:47,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:28:47,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:28:47,455 INFO L87 Difference]: Start difference. First operand 1376 states and 1636 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:49,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:49,483 INFO L93 Difference]: Finished difference Result 1382 states and 1643 transitions. [2021-11-19 13:28:49,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:28:49,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-19 13:28:49,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:49,490 INFO L225 Difference]: With dead ends: 1382 [2021-11-19 13:28:49,490 INFO L226 Difference]: Without dead ends: 1382 [2021-11-19 13:28:49,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 112 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:28:49,491 INFO L933 BasicCegarLoop]: 1159 mSDtfsCounter, 102 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:49,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 1859 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 545 Invalid, 0 Unknown, 28 Unchecked, 2.0s Time] [2021-11-19 13:28:49,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2021-11-19 13:28:49,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1381. [2021-11-19 13:28:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 847 states have (on average 1.8949232585596223) internal successors, (1605), 1358 states have internal predecessors, (1605), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-19 13:28:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1643 transitions. [2021-11-19 13:28:49,524 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1643 transitions. Word has length 62 [2021-11-19 13:28:49,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:49,524 INFO L470 AbstractCegarLoop]: Abstraction has 1381 states and 1643 transitions. [2021-11-19 13:28:49,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:28:49,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1643 transitions. [2021-11-19 13:28:49,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-19 13:28:49,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:49,526 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] [2021-11-19 13:28:49,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:49,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:49,742 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr1REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:28:49,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash -202859288, now seen corresponding path program 1 times [2021-11-19 13:28:49,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:49,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209166575] [2021-11-19 13:28:49,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:49,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:49,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:49,744 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:49,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 13:28:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:50,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 13:28:50,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:50,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:28:50,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:28:50,145 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 13:28:50,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-11-19 13:28:50,154 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 13:28:50,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-11-19 13:28:50,292 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-19 13:28:50,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 30 [2021-11-19 13:28:56,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:56,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:28:58,890 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:58,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209166575] [2021-11-19 13:28:58,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209166575] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:58,890 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:58,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 9 [2021-11-19 13:28:58,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660002148] [2021-11-19 13:28:58,891 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:58,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 13:28:58,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:58,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 13:28:58,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:28:58,892 INFO L87 Difference]: Start difference. First operand 1381 states and 1643 transitions. Second operand has 11 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:29:09,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:09,348 INFO L93 Difference]: Finished difference Result 1381 states and 1642 transitions. [2021-11-19 13:29:09,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:29:09,349 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-19 13:29:09,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:09,355 INFO L225 Difference]: With dead ends: 1381 [2021-11-19 13:29:09,356 INFO L226 Difference]: Without dead ends: 1381 [2021-11-19 13:29:09,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:29:09,357 INFO L933 BasicCegarLoop]: 1162 mSDtfsCounter, 78 mSDsluCounter, 2912 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 4074 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1908 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:09,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 4074 Invalid, 3001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1091 Invalid, 0 Unknown, 1908 Unchecked, 10.4s Time] [2021-11-19 13:29:09,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2021-11-19 13:29:09,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1381. [2021-11-19 13:29:09,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 847 states have (on average 1.8937426210153483) internal successors, (1604), 1358 states have internal predecessors, (1604), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-19 13:29:09,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1642 transitions. [2021-11-19 13:29:09,386 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1642 transitions. Word has length 62 [2021-11-19 13:29:09,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:09,386 INFO L470 AbstractCegarLoop]: Abstraction has 1381 states and 1642 transitions. [2021-11-19 13:29:09,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:29:09,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1642 transitions. [2021-11-19 13:29:09,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 13:29:09,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:09,388 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] [2021-11-19 13:29:09,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:09,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:09,604 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:29:09,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:09,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1136013504, now seen corresponding path program 1 times [2021-11-19 13:29:09,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:09,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440693960] [2021-11-19 13:29:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:09,606 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:09,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:09,607 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:09,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 13:29:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:09,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:29:09,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:10,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:10,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:10,243 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:10,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440693960] [2021-11-19 13:29:10,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440693960] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:10,243 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:10,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 13:29:10,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434394070] [2021-11-19 13:29:10,244 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:10,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:29:10,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:10,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:29:10,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:29:10,245 INFO L87 Difference]: Start difference. First operand 1381 states and 1642 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:29:10,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:10,389 INFO L93 Difference]: Finished difference Result 1395 states and 1656 transitions. [2021-11-19 13:29:10,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:29:10,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-19 13:29:10,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:10,398 INFO L225 Difference]: With dead ends: 1395 [2021-11-19 13:29:10,399 INFO L226 Difference]: Without dead ends: 1395 [2021-11-19 13:29:10,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:29:10,400 INFO L933 BasicCegarLoop]: 1178 mSDtfsCounter, 20 mSDsluCounter, 7054 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 8232 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:10,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 8232 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:29:10,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2021-11-19 13:29:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1393. [2021-11-19 13:29:10,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 856 states have (on average 1.8878504672897196) internal successors, (1616), 1368 states have internal predecessors, (1616), 20 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-19 13:29:10,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1656 transitions. [2021-11-19 13:29:10,433 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1656 transitions. Word has length 68 [2021-11-19 13:29:10,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:10,434 INFO L470 AbstractCegarLoop]: Abstraction has 1393 states and 1656 transitions. [2021-11-19 13:29:10,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:29:10,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1656 transitions. [2021-11-19 13:29:10,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 13:29:10,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:10,436 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] [2021-11-19 13:29:10,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:10,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:10,651 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:29:10,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:10,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1078181117, now seen corresponding path program 1 times [2021-11-19 13:29:10,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:10,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307932158] [2021-11-19 13:29:10,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:10,653 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:10,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:10,654 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:10,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 13:29:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:10,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:29:10,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:11,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:11,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:11,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307932158] [2021-11-19 13:29:11,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [307932158] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:11,638 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:11,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:29:11,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742107830] [2021-11-19 13:29:11,639 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:11,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:29:11,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:11,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:29:11,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:29:11,640 INFO L87 Difference]: Start difference. First operand 1393 states and 1656 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 13:29:11,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:11,985 INFO L93 Difference]: Finished difference Result 1437 states and 1704 transitions. [2021-11-19 13:29:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:29:11,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2021-11-19 13:29:11,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:11,996 INFO L225 Difference]: With dead ends: 1437 [2021-11-19 13:29:11,996 INFO L226 Difference]: Without dead ends: 1437 [2021-11-19 13:29:11,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:29:11,997 INFO L933 BasicCegarLoop]: 1177 mSDtfsCounter, 119 mSDsluCounter, 5700 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 6877 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:11,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 6877 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:29:12,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2021-11-19 13:29:12,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1396. [2021-11-19 13:29:12,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 858 states have (on average 1.8857808857808858) internal successors, (1618), 1370 states have internal predecessors, (1618), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (21), 19 states have call predecessors, (21), 20 states have call successors, (21) [2021-11-19 13:29:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1659 transitions. [2021-11-19 13:29:12,030 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1659 transitions. Word has length 68 [2021-11-19 13:29:12,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:12,030 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 1659 transitions. [2021-11-19 13:29:12,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 13:29:12,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1659 transitions. [2021-11-19 13:29:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 13:29:12,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:12,032 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] [2021-11-19 13:29:12,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:12,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:12,246 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:29:12,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:12,247 INFO L85 PathProgramCache]: Analyzing trace with hash 396897840, now seen corresponding path program 1 times [2021-11-19 13:29:12,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:12,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494947997] [2021-11-19 13:29:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:12,248 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:12,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:12,249 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:12,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 13:29:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:12,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:29:12,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:12,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:29:12,960 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 13:29:12,961 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 15 treesize of output 20 [2021-11-19 13:29:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:12,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:13,421 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:13,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494947997] [2021-11-19 13:29:13,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494947997] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:13,422 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:13,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 6 [2021-11-19 13:29:13,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920655009] [2021-11-19 13:29:13,422 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:13,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:29:13,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:13,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:29:13,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:29:13,424 INFO L87 Difference]: Start difference. First operand 1396 states and 1659 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 13:29:18,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:18,632 INFO L93 Difference]: Finished difference Result 2543 states and 3039 transitions. [2021-11-19 13:29:18,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:29:18,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 73 [2021-11-19 13:29:18,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:18,645 INFO L225 Difference]: With dead ends: 2543 [2021-11-19 13:29:18,645 INFO L226 Difference]: Without dead ends: 2543 [2021-11-19 13:29:18,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 135 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:29:18,646 INFO L933 BasicCegarLoop]: 1101 mSDtfsCounter, 1609 mSDsluCounter, 3767 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 4868 SdHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 843 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:18,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1615 Valid, 4868 Invalid, 3591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2727 Invalid, 0 Unknown, 843 Unchecked, 5.1s Time] [2021-11-19 13:29:18,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states. [2021-11-19 13:29:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 1395. [2021-11-19 13:29:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 858 states have (on average 1.8846153846153846) internal successors, (1617), 1369 states have internal predecessors, (1617), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (21), 19 states have call predecessors, (21), 20 states have call successors, (21) [2021-11-19 13:29:18,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1658 transitions. [2021-11-19 13:29:18,684 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1658 transitions. Word has length 73 [2021-11-19 13:29:18,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:18,685 INFO L470 AbstractCegarLoop]: Abstraction has 1395 states and 1658 transitions. [2021-11-19 13:29:18,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 13:29:18,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1658 transitions. [2021-11-19 13:29:18,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 13:29:18,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:18,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:29:18,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:18,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:18,904 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:29:18,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:18,905 INFO L85 PathProgramCache]: Analyzing trace with hash 396897841, now seen corresponding path program 1 times [2021-11-19 13:29:18,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:18,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276302244] [2021-11-19 13:29:18,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:18,905 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:18,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:18,906 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:18,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 13:29:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:19,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 13:29:19,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:19,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:29:19,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:29:22,216 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 13:29:22,217 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 29 treesize of output 31 [2021-11-19 13:29:22,230 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:29:22,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2021-11-19 13:29:22,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:22,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:41,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:41,464 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:41,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276302244] [2021-11-19 13:29:41,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276302244] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:41,465 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:41,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-19 13:29:41,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769582559] [2021-11-19 13:29:41,465 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:41,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 13:29:41,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:41,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 13:29:41,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=98, Unknown=6, NotChecked=0, Total=132 [2021-11-19 13:29:41,466 INFO L87 Difference]: Start difference. First operand 1395 states and 1658 transitions. Second operand has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 10 states have internal predecessors, (131), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 13:29:57,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:57,989 INFO L93 Difference]: Finished difference Result 2588 states and 3144 transitions. [2021-11-19 13:29:57,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:29:57,993 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 10 states have internal predecessors, (131), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 73 [2021-11-19 13:29:57,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:57,999 INFO L225 Difference]: With dead ends: 2588 [2021-11-19 13:29:57,999 INFO L226 Difference]: Without dead ends: 2588 [2021-11-19 13:29:58,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=43, Invalid=131, Unknown=8, NotChecked=0, Total=182 [2021-11-19 13:29:58,001 INFO L933 BasicCegarLoop]: 941 mSDtfsCounter, 3580 mSDsluCounter, 4420 mSDsCounter, 0 mSdLazyCounter, 4536 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3591 SdHoareTripleChecker+Valid, 5361 SdHoareTripleChecker+Invalid, 9122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4529 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:58,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3591 Valid, 5361 Invalid, 9122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4536 Invalid, 0 Unknown, 4529 Unchecked, 12.3s Time] [2021-11-19 13:29:58,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2021-11-19 13:29:58,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 1363. [2021-11-19 13:29:58,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 860 states have (on average 1.8430232558139534) internal successors, (1585), 1337 states have internal predecessors, (1585), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (21), 19 states have call predecessors, (21), 20 states have call successors, (21) [2021-11-19 13:29:58,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1626 transitions. [2021-11-19 13:29:58,034 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1626 transitions. Word has length 73 [2021-11-19 13:29:58,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:58,035 INFO L470 AbstractCegarLoop]: Abstraction has 1363 states and 1626 transitions. [2021-11-19 13:29:58,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 10 states have internal predecessors, (131), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 13:29:58,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1626 transitions. [2021-11-19 13:29:58,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-19 13:29:58,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:58,036 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:29:58,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:58,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:58,251 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:29:58,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1622258381, now seen corresponding path program 1 times [2021-11-19 13:29:58,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:58,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169213499] [2021-11-19 13:29:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:58,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:58,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:58,253 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:58,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 13:29:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:58,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:29:58,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:58,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:29:58,685 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 24 treesize of output 20 [2021-11-19 13:29:58,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-11-19 13:29:58,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:58,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:58,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:58,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:58,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169213499] [2021-11-19 13:29:58,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169213499] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:58,974 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:58,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-19 13:29:58,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454449784] [2021-11-19 13:29:58,975 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:58,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:29:58,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:58,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:29:58,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:29:58,976 INFO L87 Difference]: Start difference. First operand 1363 states and 1626 transitions. Second operand has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 13:30:04,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:04,721 INFO L93 Difference]: Finished difference Result 1371 states and 1634 transitions. [2021-11-19 13:30:04,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:30:04,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2021-11-19 13:30:04,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:04,726 INFO L225 Difference]: With dead ends: 1371 [2021-11-19 13:30:04,726 INFO L226 Difference]: Without dead ends: 1371 [2021-11-19 13:30:04,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 149 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:30:04,727 INFO L933 BasicCegarLoop]: 1137 mSDtfsCounter, 23 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 3291 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4719 SdHoareTripleChecker+Invalid, 3293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:04,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 4719 Invalid, 3293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3291 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-11-19 13:30:04,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2021-11-19 13:30:04,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1370. [2021-11-19 13:30:04,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 866 states have (on average 1.8394919168591224) internal successors, (1593), 1343 states have internal predecessors, (1593), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (21), 19 states have call predecessors, (21), 20 states have call successors, (21) [2021-11-19 13:30:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1634 transitions. [2021-11-19 13:30:04,756 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1634 transitions. Word has length 80 [2021-11-19 13:30:04,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:04,756 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 1634 transitions. [2021-11-19 13:30:04,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 13:30:04,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1634 transitions. [2021-11-19 13:30:04,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-19 13:30:04,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:04,758 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:04,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-11-19 13:30:04,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:04,990 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:30:04,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:04,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1249597809, now seen corresponding path program 1 times [2021-11-19 13:30:04,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:04,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552236369] [2021-11-19 13:30:04,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:04,991 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:04,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:04,993 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:05,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 13:30:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:05,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:30:05,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:05,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:30:05,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 13:30:05,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-19 13:30:05,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-19 13:30:05,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-19 13:30:05,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:05,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:06,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:06,717 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:06,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552236369] [2021-11-19 13:30:06,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552236369] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:06,718 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:06,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-11-19 13:30:06,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358345759] [2021-11-19 13:30:06,718 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:06,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 13:30:06,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:06,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 13:30:06,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:30:06,730 INFO L87 Difference]: Start difference. First operand 1370 states and 1634 transitions. Second operand has 16 states, 13 states have (on average 6.923076923076923) internal successors, (90), 12 states have internal predecessors, (90), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 13:30:26,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:26,790 INFO L93 Difference]: Finished difference Result 1372 states and 1633 transitions. [2021-11-19 13:30:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 13:30:26,791 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 6.923076923076923) internal successors, (90), 12 states have internal predecessors, (90), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 81 [2021-11-19 13:30:26,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:26,795 INFO L225 Difference]: With dead ends: 1372 [2021-11-19 13:30:26,796 INFO L226 Difference]: Without dead ends: 1372 [2021-11-19 13:30:26,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:30:26,797 INFO L933 BasicCegarLoop]: 1136 mSDtfsCounter, 47 mSDsluCounter, 5372 mSDsCounter, 0 mSdLazyCounter, 3854 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 6508 SdHoareTripleChecker+Invalid, 3863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:26,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 6508 Invalid, 3863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3854 Invalid, 0 Unknown, 0 Unchecked, 19.5s Time] [2021-11-19 13:30:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2021-11-19 13:30:26,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1370. [2021-11-19 13:30:26,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 866 states have (on average 1.838337182448037) internal successors, (1592), 1343 states have internal predecessors, (1592), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (21), 19 states have call predecessors, (21), 20 states have call successors, (21) [2021-11-19 13:30:26,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1633 transitions. [2021-11-19 13:30:26,828 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1633 transitions. Word has length 81 [2021-11-19 13:30:26,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:26,828 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 1633 transitions. [2021-11-19 13:30:26,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 6.923076923076923) internal successors, (90), 12 states have internal predecessors, (90), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 13:30:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1633 transitions. [2021-11-19 13:30:26,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-19 13:30:26,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:26,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:26,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:27,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:27,045 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:30:27,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:27,046 INFO L85 PathProgramCache]: Analyzing trace with hash -63374884, now seen corresponding path program 1 times [2021-11-19 13:30:27,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:27,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483844125] [2021-11-19 13:30:27,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:27,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:27,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:27,047 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:27,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 13:30:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:27,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:30:27,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:27,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:27,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:27,845 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:27,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483844125] [2021-11-19 13:30:27,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483844125] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:27,846 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:27,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:30:27,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050191534] [2021-11-19 13:30:27,846 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:27,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:30:27,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:27,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:30:27,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:30:27,848 INFO L87 Difference]: Start difference. First operand 1370 states and 1633 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 13:30:28,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:28,014 INFO L93 Difference]: Finished difference Result 1382 states and 1646 transitions. [2021-11-19 13:30:28,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:30:28,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 88 [2021-11-19 13:30:28,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:28,022 INFO L225 Difference]: With dead ends: 1382 [2021-11-19 13:30:28,023 INFO L226 Difference]: Without dead ends: 1376 [2021-11-19 13:30:28,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:30:28,025 INFO L933 BasicCegarLoop]: 1141 mSDtfsCounter, 28 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 4551 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:28,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 4551 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:30:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2021-11-19 13:30:28,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1376. [2021-11-19 13:30:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 871 states have (on average 1.8346727898966706) internal successors, (1598), 1349 states have internal predecessors, (1598), 20 states have call successors, (20), 8 states have call predecessors, (20), 9 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2021-11-19 13:30:28,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1640 transitions. [2021-11-19 13:30:28,076 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1640 transitions. Word has length 88 [2021-11-19 13:30:28,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:28,076 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 1640 transitions. [2021-11-19 13:30:28,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 13:30:28,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1640 transitions. [2021-11-19 13:30:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-19 13:30:28,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:28,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:28,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:28,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:28,279 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:30:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1800220956, now seen corresponding path program 1 times [2021-11-19 13:30:28,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:28,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273144315] [2021-11-19 13:30:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:28,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:28,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:28,282 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:28,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 13:30:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:28,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:30:28,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:28,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:28,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:29,079 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:29,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273144315] [2021-11-19 13:30:29,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273144315] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:30:29,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1362794727] [2021-11-19 13:30:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:29,079 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:30:29,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:30:29,081 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:30:29,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-19 13:30:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:29,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:30:29,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:29,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:29,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:29,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:29,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1362794727] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:30:29,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599117588] [2021-11-19 13:30:29,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:29,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:30:29,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:30:29,963 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:30:29,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-19 13:30:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:30,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:30:30,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:30,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:30,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:30,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599117588] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:30:30,773 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:30:30,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 17 [2021-11-19 13:30:30,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499648438] [2021-11-19 13:30:30,774 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:30:30,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 13:30:30,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:30,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 13:30:30,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-11-19 13:30:30,776 INFO L87 Difference]: Start difference. First operand 1376 states and 1640 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 1 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 13:30:31,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:31,396 INFO L93 Difference]: Finished difference Result 1394 states and 1661 transitions. [2021-11-19 13:30:31,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 13:30:31,397 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 1 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 90 [2021-11-19 13:30:31,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:31,399 INFO L225 Difference]: With dead ends: 1394 [2021-11-19 13:30:31,399 INFO L226 Difference]: Without dead ends: 1385 [2021-11-19 13:30:31,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=270, Invalid=486, Unknown=0, NotChecked=0, Total=756 [2021-11-19 13:30:31,401 INFO L933 BasicCegarLoop]: 1145 mSDtfsCounter, 83 mSDsluCounter, 6839 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 7984 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:31,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 7984 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:30:31,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2021-11-19 13:30:31,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1382. [2021-11-19 13:30:31,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 877 states have (on average 1.830102622576967) internal successors, (1605), 1355 states have internal predecessors, (1605), 20 states have call successors, (20), 8 states have call predecessors, (20), 9 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2021-11-19 13:30:31,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1647 transitions. [2021-11-19 13:30:31,419 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1647 transitions. Word has length 90 [2021-11-19 13:30:31,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:31,420 INFO L470 AbstractCegarLoop]: Abstraction has 1382 states and 1647 transitions. [2021-11-19 13:30:31,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 1 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 13:30:31,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1647 transitions. [2021-11-19 13:30:31,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-19 13:30:31,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:31,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:31,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:31,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:31,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-11-19 13:30:32,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:30:32,026 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATION === [alt_mallocErr0REQUIRES_VIOLATION, alt_mallocErr1REQUIRES_VIOLATION, alt_freeErr0REQUIRES_VIOLATION, alt_freeErr1REQUIRES_VIOLATION (and 630 more)] === [2021-11-19 13:30:32,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:32,026 INFO L85 PathProgramCache]: Analyzing trace with hash 903294876, now seen corresponding path program 2 times [2021-11-19 13:30:32,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:32,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158999186] [2021-11-19 13:30:32,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:30:32,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:32,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:32,028 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:32,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 13:30:32,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:30:32,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:30:32,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:30:32,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:32,834 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:32,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:33,521 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:33,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158999186] [2021-11-19 13:30:33,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158999186] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:30:33,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1817905847] [2021-11-19 13:30:33,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:30:33,522 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:30:33,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:30:33,522 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:30:33,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-11-19 13:30:34,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:30:34,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:30:34,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:30:34,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:34,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:35,077 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:35,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1817905847] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:30:35,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297967349] [2021-11-19 13:30:35,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:30:35,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:30:35,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:30:35,078 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:30:35,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf9e6f-b50e-4773-9e0c-06a228449b0b/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-19 13:31:10,070 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:31:10,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:31:10,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 13:31:10,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:10,504 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:31:10,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-11-19 13:31:10,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-19 13:33:02,788 WARN L227 SmtUtils]: Spent 33.80s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:33:02,789 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-19 13:33:02,789 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 78 treesize of output 82 [2021-11-19 13:33:03,525 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-19 13:33:03,525 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 127 treesize of output 40 [2021-11-19 13:33:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 10 refuted. 11 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:03,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:06,062 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 13:33:06,062 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 66 treesize of output 65 [2021-11-19 13:37:41,711 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-19 13:37:41,712 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 119 treesize of output 118 [2021-11-19 13:37:45,269 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_121| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_119| (_ BitVec 32))) (or (= |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_121| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_119| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))) is different from false [2021-11-19 13:37:48,503 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_121| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_119| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#in~a#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_121| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_119| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) is different from false [2021-11-19 13:38:10,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-19 13:38:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:38:10,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297967349] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:38:10,615 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:38:10,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 18, 18] total 53 [2021-11-19 13:38:10,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519710585] [2021-11-19 13:38:10,616 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:38:10,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-19 13:38:10,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:38:10,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-19 13:38:10,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2197, Unknown=156, NotChecked=198, Total=2756 [2021-11-19 13:38:10,620 INFO L87 Difference]: Start difference. First operand 1382 states and 1647 transitions. Second operand has 53 states, 51 states have (on average 4.96078431372549) internal successors, (253), 49 states have internal predecessors, (253), 7 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2021-11-19 13:38:18,114 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_121| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_119| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#in~a#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_121| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_119| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-19 13:38:20,213 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_121| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_119| (_ BitVec 32))) (or (= |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_121| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_119| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-19 13:39:51,106 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ bv1 32)) (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_119| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_119| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)))))))))))))))) (_ bv1 1))))) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)))))))))))))) (_ bv1 1))))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-19 13:39:53,150 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_117| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))))))) (_ bv1 1))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)))))))))))) (_ bv1 1))))) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (= (_ bv2 32) |c_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1|) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_85| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_85| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-19 13:39:55,204 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_115| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)))))))))))))) (_ bv1 1))))) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_85| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_86| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_85| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_86| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))) (_ bv1 1))))) (= (_ bv3 32) |c_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1|)) is different from false [2021-11-19 13:39:57,251 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv4 32) |c_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1|) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_87| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_85| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_86| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_85| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_86| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_87| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|))) (_ bv1 1))) (= |c_alt_bzero_#in~a#1.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (forall ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.base|) (bvadd |alt_bzero_#Ultimate.C_memset_#t~loopctr316#1| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_113| |c_alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|)))))))))))))) (_ bv1 1)))))) is different from false [2021-11-19 13:40:24,256 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv6 32) |c_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1|) (= |c_alt_bzero_#in~n#1| |c_alt_bzero_#Ultimate.C_memset_#amount#1|) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_87| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_88| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_89| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_85| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_86| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_85| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_86| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_87| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_88| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_89| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))) (_ bv1 1))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#in~a#1.base|))))) (_ bv1 1)))) is different from false [2021-11-19 13:40:27,191 WARN L838 $PredicateComparison]: unable to prove that (and (not (bvult (_ bv6 32) |c_alt_bzero_#in~n#1|)) (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_87| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_88| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_89| (_ BitVec 32)) (|alt_bzero_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_85| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_86| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_84| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_85| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_86| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_87| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_88| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_89| |alt_bzero_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (or (exists ((|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| (_ BitVec 32)) (|v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| (_ BitVec 32))) (not (= |c_alt_bzero_#in~a#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_alt_bzero_#in~a#1.base|) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_105| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_104| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_107| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_106| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_109| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32)) (bvadd |v_alt_bzero_#Ultimate.C_memset_#t~loopctr316#1_108| |v_alt_bzero_#Ultimate.C_memset_#ptr#1.offset_34|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_7|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_4|))))))))))) (_ bv1 1))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |c_alt_bzero_#in~a#1.base|))))) (_ bv1 1)))) is different from false