./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba --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 64bit --witnessprinter.graph.data.programhash 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:04:36,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:04:36,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:04:36,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:04:36,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:04:36,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:04:36,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:04:36,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:04:36,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:04:36,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:04:36,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:04:36,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:04:36,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:04:36,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:04:36,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:04:36,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:04:36,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:04:36,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:04:37,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:04:37,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:04:37,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:04:37,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:04:37,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:04:37,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:04:37,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:04:37,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:04:37,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:04:37,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:04:37,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:04:37,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:04:37,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:04:37,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:04:37,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:04:37,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:04:37,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:04:37,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:04:37,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:04:37,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:04:37,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:04:37,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:04:37,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:04:37,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2022-11-22 02:04:37,074 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:04:37,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:04:37,075 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:04:37,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:04:37,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:04:37,076 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:04:37,076 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:04:37,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:04:37,077 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:04:37,077 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:04:37,077 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:04:37,077 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:04:37,078 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:04:37,078 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:04:37,078 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:04:37,078 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:04:37,078 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:04:37,083 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:04:37,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 02:04:37,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 02:04:37,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:04:37,085 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:04:37,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:04:37,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:04:37,086 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 02:04:37,086 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 02:04:37,086 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 02:04:37,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:04:37,087 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:04:37,087 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:04:37,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:04:37,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:04:37,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:04:37,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:04:37,088 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:04:37,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:04:37,089 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:04:37,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:04:37,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:04:37,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 [2022-11-22 02:04:37,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:04:37,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:04:37,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:04:37,441 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:04:37,441 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:04:37,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2022-11-22 02:04:40,475 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:04:40,690 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:04:40,690 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2022-11-22 02:04:40,697 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/data/638327b35/d66db1f67ebb4fac8d3c62eb16e57cb4/FLAGed9385fff [2022-11-22 02:04:40,747 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/data/638327b35/d66db1f67ebb4fac8d3c62eb16e57cb4 [2022-11-22 02:04:40,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:04:40,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:04:40,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:04:40,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:04:40,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:04:40,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:40,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3662acf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40, skipping insertion in model container [2022-11-22 02:04:40,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:40,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:04:40,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:04:40,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:04:40,969 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:04:40,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:04:40,996 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:04:40,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40 WrapperNode [2022-11-22 02:04:40,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:04:40,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:04:40,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:04:40,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:04:41,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,036 INFO L138 Inliner]: procedures = 7, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2022-11-22 02:04:41,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:04:41,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:04:41,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:04:41,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:04:41,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,079 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:04:41,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:04:41,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:04:41,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:04:41,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (1/1) ... [2022-11-22 02:04:41,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:04:41,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:04:41,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:04:41,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:04:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:04:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:04:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:04:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:04:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:04:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:04:41,246 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:04:41,251 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:04:41,661 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:04:41,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:04:41,677 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:04:41,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:04:41 BoogieIcfgContainer [2022-11-22 02:04:41,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:04:41,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:04:41,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:04:41,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:04:41,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:04:40" (1/3) ... [2022-11-22 02:04:41,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cc13c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:04:41, skipping insertion in model container [2022-11-22 02:04:41,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:04:40" (2/3) ... [2022-11-22 02:04:41,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cc13c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:04:41, skipping insertion in model container [2022-11-22 02:04:41,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:04:41" (3/3) ... [2022-11-22 02:04:41,689 INFO L112 eAbstractionObserver]: Analyzing ICFG 4BitCounterPointer.c [2022-11-22 02:04:41,720 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:04:41,721 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2022-11-22 02:04:41,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:04:41,783 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52b8589f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:04:41,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-22 02:04:41,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 53 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:41,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:04:41,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:41,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:04:41,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:41,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:41,800 INFO L85 PathProgramCache]: Analyzing trace with hash 3476, now seen corresponding path program 1 times [2022-11-22 02:04:41,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:41,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989271755] [2022-11-22 02:04:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:41,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:42,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:42,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989271755] [2022-11-22 02:04:42,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989271755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:42,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:42,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:04:42,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131759962] [2022-11-22 02:04:42,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:42,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:42,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:42,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:42,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:42,370 INFO L87 Difference]: Start difference. First operand has 54 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 53 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-22 02:04:42,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:42,464 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2022-11-22 02:04:42,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:04:42,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-22 02:04:42,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:42,482 INFO L225 Difference]: With dead ends: 50 [2022-11-22 02:04:42,482 INFO L226 Difference]: Without dead ends: 49 [2022-11-22 02:04:42,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:42,502 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:42,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 20 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:04:42,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-22 02:04:42,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-22 02:04:42,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 48 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:42,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2022-11-22 02:04:42,549 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 2 [2022-11-22 02:04:42,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:42,550 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2022-11-22 02:04:42,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-22 02:04:42,552 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2022-11-22 02:04:42,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:04:42,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:42,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:04:42,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:04:42,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:42,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:42,555 INFO L85 PathProgramCache]: Analyzing trace with hash 3477, now seen corresponding path program 1 times [2022-11-22 02:04:42,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:42,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897451879] [2022-11-22 02:04:42,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:42,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:42,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:42,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897451879] [2022-11-22 02:04:42,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897451879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:42,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:42,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:04:42,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409627447] [2022-11-22 02:04:42,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:42,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:42,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:42,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:42,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:42,831 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-22 02:04:42,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:42,885 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2022-11-22 02:04:42,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:04:42,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-22 02:04:42,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:42,887 INFO L225 Difference]: With dead ends: 45 [2022-11-22 02:04:42,887 INFO L226 Difference]: Without dead ends: 45 [2022-11-22 02:04:42,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:42,889 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:42,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 21 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:04:42,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-22 02:04:42,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-22 02:04:42,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 44 states have internal predecessors, (48), 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) [2022-11-22 02:04:42,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2022-11-22 02:04:42,895 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 2 [2022-11-22 02:04:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:42,895 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2022-11-22 02:04:42,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-22 02:04:42,896 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2022-11-22 02:04:42,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:04:42,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:42,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:04:42,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:04:42,897 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:42,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash 107732, now seen corresponding path program 1 times [2022-11-22 02:04:42,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:42,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362809654] [2022-11-22 02:04:42,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:42,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:42,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:42,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362809654] [2022-11-22 02:04:42,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362809654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:42,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:42,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:04:42,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648649153] [2022-11-22 02:04:42,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:42,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:42,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:42,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:42,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:42,987 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2022-11-22 02:04:43,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:43,050 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-11-22 02:04:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:04:43,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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 [2022-11-22 02:04:43,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:43,052 INFO L225 Difference]: With dead ends: 41 [2022-11-22 02:04:43,052 INFO L226 Difference]: Without dead ends: 41 [2022-11-22 02:04:43,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,053 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:43,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 16 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:04:43,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-22 02:04:43,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-22 02:04:43,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 22 states have (on average 2.0) internal successors, (44), 40 states have internal predecessors, (44), 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) [2022-11-22 02:04:43,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2022-11-22 02:04:43,059 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 3 [2022-11-22 02:04:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:43,059 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2022-11-22 02:04:43,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2022-11-22 02:04:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2022-11-22 02:04:43,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:04:43,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:43,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:04:43,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:04:43,061 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:43,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash 107733, now seen corresponding path program 1 times [2022-11-22 02:04:43,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:43,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794046091] [2022-11-22 02:04:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:43,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:43,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:43,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:43,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794046091] [2022-11-22 02:04:43,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794046091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:43,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:43,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:04:43,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141114838] [2022-11-22 02:04:43,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:43,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:43,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:43,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:43,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,212 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2022-11-22 02:04:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:43,277 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-11-22 02:04:43,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:04:43,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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 [2022-11-22 02:04:43,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:43,279 INFO L225 Difference]: With dead ends: 37 [2022-11-22 02:04:43,279 INFO L226 Difference]: Without dead ends: 37 [2022-11-22 02:04:43,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,292 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:43,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 17 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:04:43,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-22 02:04:43,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-22 02:04:43,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 36 states have internal predecessors, (40), 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) [2022-11-22 02:04:43,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2022-11-22 02:04:43,296 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 3 [2022-11-22 02:04:43,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:43,297 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2022-11-22 02:04:43,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2022-11-22 02:04:43,297 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-11-22 02:04:43,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:04:43,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:43,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:04:43,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:04:43,298 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:43,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:43,299 INFO L85 PathProgramCache]: Analyzing trace with hash 3339671, now seen corresponding path program 1 times [2022-11-22 02:04:43,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:43,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762515971] [2022-11-22 02:04:43,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:43,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:43,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:43,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762515971] [2022-11-22 02:04:43,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762515971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:43,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:43,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:04:43,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756439810] [2022-11-22 02:04:43,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:43,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:43,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:43,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:43,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,401 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-22 02:04:43,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:43,459 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-11-22 02:04:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:04:43,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-22 02:04:43,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:43,462 INFO L225 Difference]: With dead ends: 33 [2022-11-22 02:04:43,462 INFO L226 Difference]: Without dead ends: 33 [2022-11-22 02:04:43,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,466 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:43,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 12 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:04:43,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-22 02:04:43,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-22 02:04:43,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 32 states have internal predecessors, (36), 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) [2022-11-22 02:04:43,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-22 02:04:43,478 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 4 [2022-11-22 02:04:43,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:43,478 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-22 02:04:43,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-22 02:04:43,478 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-22 02:04:43,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:04:43,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:43,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:04:43,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:04:43,479 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:43,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:43,480 INFO L85 PathProgramCache]: Analyzing trace with hash 3339672, now seen corresponding path program 1 times [2022-11-22 02:04:43,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:43,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903602052] [2022-11-22 02:04:43,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:43,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:43,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:43,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:43,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903602052] [2022-11-22 02:04:43,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903602052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:43,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:43,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:04:43,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272157476] [2022-11-22 02:04:43,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:43,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:43,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:43,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:43,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,594 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-22 02:04:43,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:43,631 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-22 02:04:43,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:04:43,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-22 02:04:43,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:43,632 INFO L225 Difference]: With dead ends: 29 [2022-11-22 02:04:43,632 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 02:04:43,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,633 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:43,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:04:43,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 02:04:43,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-22 02:04:43,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 28 states have internal predecessors, (32), 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) [2022-11-22 02:04:43,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-11-22 02:04:43,637 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 4 [2022-11-22 02:04:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:43,637 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-22 02:04:43,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-22 02:04:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-11-22 02:04:43,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:04:43,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:43,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:04:43,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:04:43,639 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:43,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:43,640 INFO L85 PathProgramCache]: Analyzing trace with hash 103529783, now seen corresponding path program 1 times [2022-11-22 02:04:43,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:43,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802009670] [2022-11-22 02:04:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:43,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:43,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:43,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:43,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802009670] [2022-11-22 02:04:43,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802009670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:43,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:43,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:04:43,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885714579] [2022-11-22 02:04:43,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:43,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:43,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:43,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:43,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,714 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:43,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:43,749 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-22 02:04:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:04:43,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:04:43,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:43,750 INFO L225 Difference]: With dead ends: 26 [2022-11-22 02:04:43,751 INFO L226 Difference]: Without dead ends: 26 [2022-11-22 02:04:43,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,752 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:43,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 9 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:04:43,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-22 02:04:43,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-22 02:04:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 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) [2022-11-22 02:04:43,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-22 02:04:43,755 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 5 [2022-11-22 02:04:43,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:43,756 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-22 02:04:43,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:43,756 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-22 02:04:43,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:04:43,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:43,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:04:43,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:04:43,757 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:43,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:43,758 INFO L85 PathProgramCache]: Analyzing trace with hash 103529784, now seen corresponding path program 1 times [2022-11-22 02:04:43,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:43,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880358382] [2022-11-22 02:04:43,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:43,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:43,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:43,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:43,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880358382] [2022-11-22 02:04:43,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880358382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:43,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:43,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:04:43,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878127680] [2022-11-22 02:04:43,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:43,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:04:43,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:43,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:04:43,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,829 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:43,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:43,858 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-22 02:04:43,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:04:43,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:04:43,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:43,859 INFO L225 Difference]: With dead ends: 23 [2022-11-22 02:04:43,859 INFO L226 Difference]: Without dead ends: 23 [2022-11-22 02:04:43,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:04:43,860 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:43,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 10 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:04:43,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-22 02:04:43,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-22 02:04:43,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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) [2022-11-22 02:04:43,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-22 02:04:43,863 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 5 [2022-11-22 02:04:43,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:43,864 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-22 02:04:43,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:43,864 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-22 02:04:43,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:04:43,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:43,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:43,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:04:43,865 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:43,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:43,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1661417693, now seen corresponding path program 1 times [2022-11-22 02:04:43,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:43,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266249201] [2022-11-22 02:04:43,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:43,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:43,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:43,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266249201] [2022-11-22 02:04:43,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266249201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:43,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:43,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:04:43,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889596759] [2022-11-22 02:04:43,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:43,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:04:43,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:43,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:04:43,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:04:43,928 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 4 states, 4 states have (on average 2.25) 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) [2022-11-22 02:04:43,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:43,985 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-22 02:04:43,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:04:43,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) 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 [2022-11-22 02:04:43,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:43,986 INFO L225 Difference]: With dead ends: 38 [2022-11-22 02:04:43,986 INFO L226 Difference]: Without dead ends: 38 [2022-11-22 02:04:43,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:04:43,987 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:43,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 35 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:04:43,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-22 02:04:43,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2022-11-22 02:04:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 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) [2022-11-22 02:04:43,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-22 02:04:43,990 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2022-11-22 02:04:43,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:43,991 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-22 02:04:43,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) 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) [2022-11-22 02:04:43,991 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-22 02:04:43,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 02:04:43,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:43,992 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:43,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:04:43,992 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:43,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:43,993 INFO L85 PathProgramCache]: Analyzing trace with hash -723063482, now seen corresponding path program 1 times [2022-11-22 02:04:43,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:43,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25303589] [2022-11-22 02:04:43,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:43,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:44,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:44,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:44,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25303589] [2022-11-22 02:04:44,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25303589] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:04:44,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934066553] [2022-11-22 02:04:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:44,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:04:44,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:04:44,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:04:44,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:04:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:44,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-22 02:04:44,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:04:44,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-11-22 02:04:44,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:44,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 14 treesize of output 16 [2022-11-22 02:04:44,656 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-22 02:04:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:44,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:04:44,741 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:04:44,742 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-11-22 02:04:44,746 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 22 [2022-11-22 02:04:44,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:44,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934066553] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:04:44,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [670842479] [2022-11-22 02:04:44,788 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-22 02:04:44,788 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:04:44,793 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:04:44,798 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:04:44,799 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:04:44,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:44,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:44,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:44,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:44,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:44,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:44,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 02:04:44,918 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 02:04:44,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:44,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 18 [2022-11-22 02:04:45,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 02:04:45,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 02:04:45,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:04:45,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:45,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:04:46,083 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:04:53,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [670842479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:53,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:04:53,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 5, 5] total 15 [2022-11-22 02:04:53,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508140447] [2022-11-22 02:04:53,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:53,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:04:53,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:53,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:04:53,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=165, Unknown=3, NotChecked=0, Total=240 [2022-11-22 02:04:53,885 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:55,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:55,983 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2022-11-22 02:04:55,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:04:55,984 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-22 02:04:55,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:55,985 INFO L225 Difference]: With dead ends: 75 [2022-11-22 02:04:55,985 INFO L226 Difference]: Without dead ends: 75 [2022-11-22 02:04:55,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=100, Invalid=203, Unknown=3, NotChecked=0, Total=306 [2022-11-22 02:04:55,986 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 79 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:55,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 63 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 02:04:55,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-22 02:04:55,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 32. [2022-11-22 02:04:55,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 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) [2022-11-22 02:04:55,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-11-22 02:04:55,992 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 14 [2022-11-22 02:04:55,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:55,992 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-11-22 02:04:55,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:55,992 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-11-22 02:04:55,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 02:04:55,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:55,993 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:56,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:04:56,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 02:04:56,205 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:04:56,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:56,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1385146651, now seen corresponding path program 1 times [2022-11-22 02:04:56,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:56,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572469997] [2022-11-22 02:04:56,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:56,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:56,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:56,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572469997] [2022-11-22 02:04:56,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572469997] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:04:56,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60723727] [2022-11-22 02:04:56,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:56,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:04:56,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:04:56,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:04:56,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:04:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:57,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-22 02:04:57,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:04:57,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-11-22 02:04:57,159 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 02:04:57,286 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:04:57,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2022-11-22 02:04:57,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 14 treesize of output 16 [2022-11-22 02:04:57,366 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-22 02:04:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:57,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:05:05,680 INFO L350 Elim1Store]: Elim1 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 129 treesize of output 117 [2022-11-22 02:05:05,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 86 [2022-11-22 02:05:05,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 78 [2022-11-22 02:05:05,803 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:05,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60723727] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:05:05,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [896097546] [2022-11-22 02:05:05,806 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-22 02:05:05,806 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:05:05,807 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:05:05,807 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:05:05,807 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:05:05,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:05,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:05,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:05,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:05,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:05,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:05,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 02:05:05,883 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 02:05:05,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:05,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 18 [2022-11-22 02:05:05,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:05,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:05,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:05,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 02:05:06,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 02:05:06,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:06,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:06,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:06,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:06,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:07,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:07,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:07,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:07,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:07,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:07,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:08,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:08,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:08,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:08,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:09,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:09,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:09,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:09,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:09,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:09,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:09,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:05:09,219 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-11-22 02:05:09,219 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 02:05:09,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:09,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:09,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:09,444 INFO L321 Elim1Store]: treesize reduction 68, result has 42.4 percent of original size [2022-11-22 02:05:09,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 275 treesize of output 296 [2022-11-22 02:05:09,616 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:05:16,190 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1071#(and (<= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x1~0#1.base|) (<= |ULTIMATE.start_main_~x1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x0~0#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= 0 |ULTIMATE.start_main_~x3~0#1.base|) (<= 0 |ULTIMATE.start_main_~x1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x3~0#1.offset|) (<= |ULTIMATE.start_main_~x3~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.base|) (<= 0 |ULTIMATE.start_main_~x0~0#1.base|) (<= |ULTIMATE.start_main_~x0~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0) (exists ((|v_ULTIMATE.start_main_#t~malloc0#1.base_7| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_#t~malloc0#1.base_7|) 0) (<= 0 |v_ULTIMATE.start_main_#t~malloc0#1.base_7|))))' at error location [2022-11-22 02:05:16,190 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:05:16,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:05:16,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2022-11-22 02:05:16,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67531720] [2022-11-22 02:05:16,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:05:16,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-22 02:05:16,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:16,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-22 02:05:16,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=1170, Unknown=17, NotChecked=0, Total=1406 [2022-11-22 02:05:16,192 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 22 states have internal predecessors, (59), 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) [2022-11-22 02:05:18,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:20,999 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_main_~x0~0#1.base| |c_ULTIMATE.start_main_~x3~0#1.base|)) (.cse1 (not (= |c_ULTIMATE.start_main_~x3~0#1.base| |c_ULTIMATE.start_main_~x1~0#1.base|)))) (and (or (not .cse0) (= |c_ULTIMATE.start_main_~x0~0#1.offset| |c_ULTIMATE.start_main_~x3~0#1.offset|)) .cse1 (= |c_ULTIMATE.start_main_~x0~0#1.offset| 0) (= |c_ULTIMATE.start_main_~x3~0#1.offset| 0) (or .cse0 (and .cse1 (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0))) (forall ((v_ArrVal_296 (Array Int Int)) (v_ArrVal_295 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_296) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)))) is different from false [2022-11-22 02:05:23,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:25,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:29,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:31,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:33,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:35,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:37,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:39,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:41,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:43,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:45,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:47,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:49,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:51,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:53,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:55,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:57,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:05:59,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:06:01,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:06:03,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:06:05,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:06:08,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:06:08,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:08,044 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2022-11-22 02:06:08,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:06:08,045 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 22 states have internal predecessors, (59), 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 22 [2022-11-22 02:06:08,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:08,045 INFO L225 Difference]: With dead ends: 96 [2022-11-22 02:06:08,046 INFO L226 Difference]: Without dead ends: 96 [2022-11-22 02:06:08,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=475, Invalid=2266, Unknown=19, NotChecked=102, Total=2862 [2022-11-22 02:06:08,048 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 152 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 64 mSolverCounterUnsat, 96 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 96 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:08,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 143 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 249 Invalid, 96 Unknown, 3 Unchecked, 47.0s Time] [2022-11-22 02:06:08,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-22 02:06:08,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 62. [2022-11-22 02:06:08,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.2295081967213115) internal successors, (75), 61 states have internal predecessors, (75), 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) [2022-11-22 02:06:08,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2022-11-22 02:06:08,054 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 22 [2022-11-22 02:06:08,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:08,054 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2022-11-22 02:06:08,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 22 states have internal predecessors, (59), 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) [2022-11-22 02:06:08,055 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2022-11-22 02:06:08,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-22 02:06:08,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:08,055 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:08,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:06:08,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:06:08,262 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:06:08,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:08,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1435305227, now seen corresponding path program 1 times [2022-11-22 02:06:08,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:08,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391971240] [2022-11-22 02:06:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:08,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:08,936 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:08,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:08,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391971240] [2022-11-22 02:06:08,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391971240] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:06:08,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125927226] [2022-11-22 02:06:08,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:08,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:06:08,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:06:08,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:06:08,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:06:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:09,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-22 02:06:09,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:09,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 198 [2022-11-22 02:06:09,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:06:09,254 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:06:09,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-22 02:06:09,436 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:06:09,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2022-11-22 02:06:09,498 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 02:06:09,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 02:06:09,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 14 treesize of output 16 [2022-11-22 02:06:09,587 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-22 02:06:09,603 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:09,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:06:09,632 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_375 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_375) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)) is different from false [2022-11-22 02:06:10,038 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:06:10,039 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 40 [2022-11-22 02:06:10,053 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:06:10,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 386 treesize of output 382 [2022-11-22 02:06:10,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 344 [2022-11-22 02:06:10,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 354 [2022-11-22 02:06:10,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 114 [2022-11-22 02:06:10,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 223 [2022-11-22 02:06:10,372 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:10,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125927226] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:06:10,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1991157542] [2022-11-22 02:06:10,375 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-22 02:06:10,375 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:06:10,376 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:06:10,376 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:06:10,376 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:06:10,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 02:06:10,443 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 02:06:10,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 18 [2022-11-22 02:06:10,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 02:06:10,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 02:06:10,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:10,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:10,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:11,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:11,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:11,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:11,825 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:06:21,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1991157542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:21,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:06:21,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7, 10, 10] total 34 [2022-11-22 02:06:21,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696680038] [2022-11-22 02:06:21,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:21,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:06:21,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:21,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:06:21,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=840, Unknown=23, NotChecked=64, Total=1190 [2022-11-22 02:06:21,502 INFO L87 Difference]: Start difference. First operand 62 states and 75 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 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) [2022-11-22 02:06:25,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:25,638 INFO L93 Difference]: Finished difference Result 119 states and 144 transitions. [2022-11-22 02:06:25,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 02:06:25,639 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 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 25 [2022-11-22 02:06:25,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:25,640 INFO L225 Difference]: With dead ends: 119 [2022-11-22 02:06:25,640 INFO L226 Difference]: Without dead ends: 119 [2022-11-22 02:06:25,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=368, Invalid=1019, Unknown=23, NotChecked=72, Total=1482 [2022-11-22 02:06:25,642 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 55 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:25,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 103 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:06:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-22 02:06:25,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 70. [2022-11-22 02:06:25,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.2028985507246377) internal successors, (83), 69 states have internal predecessors, (83), 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) [2022-11-22 02:06:25,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 83 transitions. [2022-11-22 02:06:25,647 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 83 transitions. Word has length 25 [2022-11-22 02:06:25,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:25,648 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 83 transitions. [2022-11-22 02:06:25,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 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) [2022-11-22 02:06:25,648 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 83 transitions. [2022-11-22 02:06:25,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 02:06:25,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:25,649 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:25,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 02:06:25,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 02:06:25,855 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:06:25,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:25,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1769996822, now seen corresponding path program 1 times [2022-11-22 02:06:25,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:25,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308027185] [2022-11-22 02:06:25,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:25,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:26,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:26,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308027185] [2022-11-22 02:06:26,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308027185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:06:26,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025928218] [2022-11-22 02:06:26,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:26,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:06:26,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:06:26,139 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:06:26,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:06:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:26,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-22 02:06:26,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:26,326 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 02:06:26,375 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:06:26,376 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-22 02:06:26,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:06:26,509 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2022-11-22 02:06:26,530 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-22 02:06:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:06:26,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:06:26,661 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x1~0#1.base| Int) (v_ArrVal_454 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_454))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~x0~0#1.base|))) (or (= (select .cse0 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~x0~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~x0~0#1.offset| 0)) |ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 0))))) is different from false [2022-11-22 02:06:26,686 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:06:26,686 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 40 [2022-11-22 02:06:26,690 INFO L350 Elim1Store]: Elim1 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 87 treesize of output 81 [2022-11-22 02:06:26,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 02:06:26,699 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 02:06:26,700 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 15 [2022-11-22 02:06:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2022-11-22 02:06:26,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025928218] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:06:26,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [351559924] [2022-11-22 02:06:26,742 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-22 02:06:26,742 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:06:26,743 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:06:26,743 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:06:26,743 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:06:26,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 02:06:26,819 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 02:06:26,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 18 [2022-11-22 02:06:26,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 02:06:26,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:26,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 02:06:27,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:27,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:27,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:27,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:27,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:27,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:27,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:28,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:28,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:28,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:28,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:28,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:28,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:28,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:28,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:29,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:29,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:29,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:29,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:29,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:29,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:29,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:29,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:30,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:30,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:30,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:30,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:30,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:30,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:30,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:30,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:31,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:31,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:31,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:31,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:31,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:31,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:31,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:32,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:32,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:32,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:32,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:32,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:32,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:32,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:32,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:33,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:33,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:33,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:33,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:33,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:33,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:33,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:34,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:34,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:34,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:34,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:34,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-22 02:06:34,570 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 02:06:34,589 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 02:06:34,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:06:34,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:06:34,657 INFO L321 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2022-11-22 02:06:34,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 39 [2022-11-22 02:06:34,775 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-11-22 02:06:34,775 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 02:06:34,895 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-22 02:06:34,898 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:06:41,655 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1866#(and (<= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x1~0#1.base|) (<= |ULTIMATE.start_main_~x1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x0~0#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= 0 |ULTIMATE.start_main_~x3~0#1.base|) (<= 0 |ULTIMATE.start_main_~x1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x3~0#1.offset|) (<= |ULTIMATE.start_main_~x3~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.base|) (<= 0 |ULTIMATE.start_main_~x0~0#1.base|) (<= |ULTIMATE.start_main_~x0~0#1.offset| 0) (= |#NULL.offset| 0) (exists ((|v_ULTIMATE.start_main_#t~malloc1#1.base_8| Int)) (and (<= 0 |v_ULTIMATE.start_main_#t~malloc1#1.base_8|) (= (select |#valid| |v_ULTIMATE.start_main_#t~malloc1#1.base_8|) 0))) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2022-11-22 02:06:41,655 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:06:41,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:06:41,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 20 [2022-11-22 02:06:41,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861649525] [2022-11-22 02:06:41,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:06:41,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-22 02:06:41,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:41,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-22 02:06:41,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=942, Unknown=1, NotChecked=66, Total=1260 [2022-11-22 02:06:41,658 INFO L87 Difference]: Start difference. First operand 70 states and 83 transitions. Second operand has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 20 states have internal predecessors, (76), 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) [2022-11-22 02:06:42,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:42,131 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2022-11-22 02:06:42,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:06:42,131 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 20 states have internal predecessors, (76), 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 33 [2022-11-22 02:06:42,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:42,132 INFO L225 Difference]: With dead ends: 104 [2022-11-22 02:06:42,132 INFO L226 Difference]: Without dead ends: 104 [2022-11-22 02:06:42,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 64 SyntacticMatches, 9 SemanticMatches, 43 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=423, Invalid=1472, Unknown=1, NotChecked=84, Total=1980 [2022-11-22 02:06:42,134 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 185 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:42,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 76 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 127 Invalid, 0 Unknown, 35 Unchecked, 0.1s Time] [2022-11-22 02:06:42,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-22 02:06:42,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 90. [2022-11-22 02:06:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.1910112359550562) internal successors, (106), 89 states have internal predecessors, (106), 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) [2022-11-22 02:06:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 106 transitions. [2022-11-22 02:06:42,140 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 106 transitions. Word has length 33 [2022-11-22 02:06:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:42,140 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 106 transitions. [2022-11-22 02:06:42,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 20 states have internal predecessors, (76), 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) [2022-11-22 02:06:42,140 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 106 transitions. [2022-11-22 02:06:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 02:06:42,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:42,141 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:42,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:06:42,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-22 02:06:42,364 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-22 02:06:42,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:42,365 INFO L85 PathProgramCache]: Analyzing trace with hash 257505609, now seen corresponding path program 2 times [2022-11-22 02:06:42,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:42,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222202333] [2022-11-22 02:06:42,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:42,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:43,419 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:43,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:43,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222202333] [2022-11-22 02:06:43,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222202333] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:06:43,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214489300] [2022-11-22 02:06:43,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:06:43,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:06:43,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:06:43,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:06:43,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:06:43,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 02:06:43,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:06:43,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-22 02:06:43,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:44,104 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~malloc2#1.base_9| Int) (|v_ULTIMATE.start_main_#t~malloc0#1.base_9| Int) (v_ArrVal_538 Int) (|v_ULTIMATE.start_main_#t~malloc3#1.base_9| Int) (v_ArrVal_537 Int) (|v_ULTIMATE.start_main_#t~malloc1#1.base_9| Int)) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_#t~malloc0#1.base_9| 1))) (let ((.cse0 (store .cse1 |v_ULTIMATE.start_main_#t~malloc1#1.base_9| 1))) (and (= (select (store .cse0 |v_ULTIMATE.start_main_#t~malloc2#1.base_9| 1) |v_ULTIMATE.start_main_#t~malloc3#1.base_9|) 0) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_#t~malloc0#1.base_9|) 0) (= (select .cse1 |v_ULTIMATE.start_main_#t~malloc1#1.base_9|) 0) (= (select .cse0 |v_ULTIMATE.start_main_#t~malloc2#1.base_9|) 0) (= |c_#valid| (store (store (store (store (store (store .cse0 |v_ULTIMATE.start_main_#t~malloc2#1.base_9| v_ArrVal_538) |v_ULTIMATE.start_main_#t~malloc3#1.base_9| v_ArrVal_537) |v_ULTIMATE.start_main_#t~malloc0#1.base_9| 0) |v_ULTIMATE.start_main_#t~malloc1#1.base_9| 0) |v_ULTIMATE.start_main_#t~malloc2#1.base_9| 0) |v_ULTIMATE.start_main_#t~malloc3#1.base_9| 0)))))) is different from true [2022-11-22 02:06:44,106 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-22 02:06:44,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:44,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214489300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:44,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:06:44,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [14] total 16 [2022-11-22 02:06:44,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395166794] [2022-11-22 02:06:44,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:44,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:06:44,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:44,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:06:44,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=186, Unknown=1, NotChecked=28, Total=272 [2022-11-22 02:06:44,108 INFO L87 Difference]: Start difference. First operand 90 states and 106 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:44,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:44,147 INFO L93 Difference]: Finished difference Result 89 states and 105 transitions. [2022-11-22 02:06:44,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:06:44,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-22 02:06:44,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:44,148 INFO L225 Difference]: With dead ends: 89 [2022-11-22 02:06:44,148 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:06:44,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=186, Unknown=1, NotChecked=28, Total=272 [2022-11-22 02:06:44,149 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:44,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-22 02:06:44,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:06:44,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:06:44,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-22 02:06:44,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:06:44,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-11-22 02:06:44,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:44,151 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:06:44,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:06:44,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:06:44,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:06:44,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 31 remaining) [2022-11-22 02:06:44,154 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 31 remaining) [2022-11-22 02:06:44,154 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 31 remaining) [2022-11-22 02:06:44,154 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 31 remaining) [2022-11-22 02:06:44,154 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 31 remaining) [2022-11-22 02:06:44,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 31 remaining) [2022-11-22 02:06:44,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 31 remaining) [2022-11-22 02:06:44,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 31 remaining) [2022-11-22 02:06:44,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 31 remaining) [2022-11-22 02:06:44,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 31 remaining) [2022-11-22 02:06:44,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 31 remaining) [2022-11-22 02:06:44,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 31 remaining) [2022-11-22 02:06:44,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 31 remaining) [2022-11-22 02:06:44,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 31 remaining) [2022-11-22 02:06:44,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 31 remaining) [2022-11-22 02:06:44,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 31 remaining) [2022-11-22 02:06:44,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 31 remaining) [2022-11-22 02:06:44,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 31 remaining) [2022-11-22 02:06:44,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 31 remaining) [2022-11-22 02:06:44,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 31 remaining) [2022-11-22 02:06:44,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 31 remaining) [2022-11-22 02:06:44,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 31 remaining) [2022-11-22 02:06:44,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 31 remaining) [2022-11-22 02:06:44,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 31 remaining) [2022-11-22 02:06:44,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 31 remaining) [2022-11-22 02:06:44,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 31 remaining) [2022-11-22 02:06:44,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 31 remaining) [2022-11-22 02:06:44,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 31 remaining) [2022-11-22 02:06:44,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 31 remaining) [2022-11-22 02:06:44,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 31 remaining) [2022-11-22 02:06:44,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (0 of 31 remaining) [2022-11-22 02:06:44,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 02:06:44,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 02:06:44,367 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:06:44,369 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:06:44,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:06:44 BoogieIcfgContainer [2022-11-22 02:06:44,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:06:44,373 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:06:44,373 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:06:44,373 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:06:44,374 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:04:41" (3/4) ... [2022-11-22 02:06:44,377 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:06:44,387 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-22 02:06:44,387 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 02:06:44,387 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 02:06:44,387 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:06:44,423 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:06:44,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:06:44,424 INFO L158 Benchmark]: Toolchain (without parser) took 123673.41ms. Allocated memory was 153.1MB in the beginning and 388.0MB in the end (delta: 234.9MB). Free memory was 126.3MB in the beginning and 282.6MB in the end (delta: -156.3MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2022-11-22 02:06:44,424 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:06:44,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.32ms. Allocated memory is still 153.1MB. Free memory was 126.3MB in the beginning and 116.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 02:06:44,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.47ms. Allocated memory is still 153.1MB. Free memory was 116.1MB in the beginning and 115.4MB in the end (delta: 789.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:06:44,425 INFO L158 Benchmark]: Boogie Preprocessor took 44.58ms. Allocated memory is still 153.1MB. Free memory was 115.4MB in the beginning and 114.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:06:44,425 INFO L158 Benchmark]: RCFGBuilder took 598.29ms. Allocated memory is still 153.1MB. Free memory was 114.1MB in the beginning and 97.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 02:06:44,426 INFO L158 Benchmark]: TraceAbstraction took 122689.66ms. Allocated memory was 153.1MB in the beginning and 388.0MB in the end (delta: 234.9MB). Free memory was 96.5MB in the beginning and 285.1MB in the end (delta: -188.7MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2022-11-22 02:06:44,426 INFO L158 Benchmark]: Witness Printer took 50.70ms. Allocated memory is still 388.0MB. Free memory was 285.1MB in the beginning and 282.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:06:44,428 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.32ms. Allocated memory is still 153.1MB. Free memory was 126.3MB in the beginning and 116.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.47ms. Allocated memory is still 153.1MB. Free memory was 116.1MB in the beginning and 115.4MB in the end (delta: 789.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.58ms. Allocated memory is still 153.1MB. Free memory was 115.4MB in the beginning and 114.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 598.29ms. Allocated memory is still 153.1MB. Free memory was 114.1MB in the beginning and 97.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 122689.66ms. Allocated memory was 153.1MB in the beginning and 388.0MB in the end (delta: 234.9MB). Free memory was 96.5MB in the beginning and 285.1MB in the end (delta: -188.7MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 50.70ms. Allocated memory is still 388.0MB. Free memory was 285.1MB in the beginning and 282.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 122.6s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 59.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 96 mSolverCounterUnknown, 764 SdHoareTripleChecker+Valid, 49.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 764 mSDsluCounter, 546 SdHoareTripleChecker+Invalid, 48.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 62 IncrementalHoareTripleChecker+Unchecked, 361 mSDsCounter, 191 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1009 IncrementalHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 191 mSolverCounterUnsat, 185 mSDtfsCounter, 1009 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 414 GetRequests, 227 SyntacticMatches, 13 SemanticMatches, 174 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2305 ImplicationChecksByTransitivity, 50.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=13, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 153 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 301 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 372 ConstructedInterpolants, 69 QuantifiedInterpolants, 6538 SizeOfPredicates, 53 NumberOfNonLiveVariables, 937 ConjunctsInSsa, 151 ConjunctsInUnsatCore, 23 InterpolantComputations, 10 PerfectInterpolantSequences, 97/189 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 28, DAG_INTERPRETER_EARLY_EXITS: 4, TOOLS_POST_APPLICATIONS: 69, TOOLS_POST_TIME: 2.4s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 51, TOOLS_QUANTIFIERELIM_TIME: 2.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 110, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 5, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 28, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 1.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 609, DAG_COMPRESSION_RETAINED_NODES: 110, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 02:06:44,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80cdb7d7-8b6e-4fd4-a3a3-27efa7667d4c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE