./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b19ed65fc9d9f8e19f4d644b05d37e3da28cb107a90eedb15c652c094a7f23f1 --- 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-8393723 [2022-11-19 07:48:07,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:48:07,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:48:07,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:48:07,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:48:07,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:48:07,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:48:07,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:48:07,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:48:07,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:48:07,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:48:07,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:48:07,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:48:07,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:48:07,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:48:07,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:48:07,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:48:08,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:48:08,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:48:08,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:48:08,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:48:08,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:48:08,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:48:08,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:48:08,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:48:08,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:48:08,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:48:08,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:48:08,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:48:08,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:48:08,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:48:08,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:48:08,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:48:08,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:48:08,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:48:08,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:48:08,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:48:08,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:48:08,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:48:08,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:48:08,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:48:08,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 07:48:08,057 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:48:08,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:48:08,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:48:08,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:48:08,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:48:08,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:48:08,060 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:48:08,060 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:48:08,060 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:48:08,060 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:48:08,061 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:48:08,061 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:48:08,061 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:48:08,062 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:48:08,062 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:48:08,062 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:48:08,062 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:48:08,063 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:48:08,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 07:48:08,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 07:48:08,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:48:08,064 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:48:08,065 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:48:08,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:48:08,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:48:08,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:48:08,066 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 07:48:08,066 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 07:48:08,066 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 07:48:08,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:48:08,066 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:48:08,067 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:48:08,067 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:48:08,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:48:08,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:48:08,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:48:08,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:48:08,068 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:48:08,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:48:08,069 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:48:08,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:48:08,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:48:08,069 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_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b19ed65fc9d9f8e19f4d644b05d37e3da28cb107a90eedb15c652c094a7f23f1 [2022-11-19 07:48:08,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:48:08,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:48:08,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:48:08,421 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:48:08,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:48:08,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i [2022-11-19 07:48:08,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/data/660ab7ae5/e6664f13621f4b0f9074e1990afa9f49/FLAGdf6c2ee43 [2022-11-19 07:48:08,971 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:48:08,972 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i [2022-11-19 07:48:08,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/data/660ab7ae5/e6664f13621f4b0f9074e1990afa9f49/FLAGdf6c2ee43 [2022-11-19 07:48:09,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/data/660ab7ae5/e6664f13621f4b0f9074e1990afa9f49 [2022-11-19 07:48:09,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:48:09,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:48:09,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:48:09,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:48:09,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:48:09,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c5c7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09, skipping insertion in model container [2022-11-19 07:48:09,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:48:09,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:48:09,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:48:09,694 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:48:09,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:48:09,759 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:48:09,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09 WrapperNode [2022-11-19 07:48:09,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:48:09,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:48:09,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:48:09,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:48:09,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,829 INFO L138 Inliner]: procedures = 123, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-11-19 07:48:09,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:48:09,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:48:09,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:48:09,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:48:09,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,881 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:48:09,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:48:09,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:48:09,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:48:09,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (1/1) ... [2022-11-19 07:48:09,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:48:09,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:48:09,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:48:09,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:48:09,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:48:09,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:48:09,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:48:09,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:48:09,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:48:09,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:48:09,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:48:09,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:48:10,076 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:48:10,078 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:48:10,410 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:48:10,463 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:48:10,467 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:48:10,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:10 BoogieIcfgContainer [2022-11-19 07:48:10,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:48:10,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:48:10,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:48:10,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:48:10,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:09" (1/3) ... [2022-11-19 07:48:10,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa6135b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:10, skipping insertion in model container [2022-11-19 07:48:10,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:09" (2/3) ... [2022-11-19 07:48:10,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa6135b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:10, skipping insertion in model container [2022-11-19 07:48:10,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:10" (3/3) ... [2022-11-19 07:48:10,483 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_extends_pointer.i [2022-11-19 07:48:10,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:48:10,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-19 07:48:10,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:48:10,589 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;@59e51e6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:48:10,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-19 07:48:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 51 states have internal predecessors, (56), 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) [2022-11-19 07:48:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 07:48:10,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:10,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 07:48:10,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:10,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:10,604 INFO L85 PathProgramCache]: Analyzing trace with hash 3879, now seen corresponding path program 1 times [2022-11-19 07:48:10,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:10,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241178779] [2022-11-19 07:48:10,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:10,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:10,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:10,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241178779] [2022-11-19 07:48:10,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241178779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:10,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:10,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:48:10,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429018527] [2022-11-19 07:48:10,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:10,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:48:10,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:10,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:48:10,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:48:10,871 INFO L87 Difference]: Start difference. First operand has 52 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 51 states have internal predecessors, (56), 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) [2022-11-19 07:48:11,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:11,030 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2022-11-19 07:48:11,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:48:11,033 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 [2022-11-19 07:48:11,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:11,044 INFO L225 Difference]: With dead ends: 54 [2022-11-19 07:48:11,044 INFO L226 Difference]: Without dead ends: 52 [2022-11-19 07:48:11,046 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 [2022-11-19 07:48:11,050 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 35 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:11,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 20 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:11,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-19 07:48:11,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2022-11-19 07:48:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.9259259259259258) internal successors, (52), 46 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) [2022-11-19 07:48:11,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-19 07:48:11,097 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 2 [2022-11-19 07:48:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:11,097 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-19 07:48:11,097 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) [2022-11-19 07:48:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-11-19 07:48:11,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 07:48:11,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:11,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 07:48:11,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:48:11,101 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:11,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:11,102 INFO L85 PathProgramCache]: Analyzing trace with hash 3880, now seen corresponding path program 1 times [2022-11-19 07:48:11,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:11,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849874001] [2022-11-19 07:48:11,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:11,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:11,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:11,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:11,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849874001] [2022-11-19 07:48:11,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849874001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:11,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:11,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:48:11,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192374912] [2022-11-19 07:48:11,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:11,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:48:11,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:11,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:48:11,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:48:11,268 INFO L87 Difference]: Start difference. First operand 47 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) [2022-11-19 07:48:11,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:11,382 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-19 07:48:11,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:48:11,383 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 [2022-11-19 07:48:11,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:11,385 INFO L225 Difference]: With dead ends: 48 [2022-11-19 07:48:11,385 INFO L226 Difference]: Without dead ends: 48 [2022-11-19 07:48:11,390 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 [2022-11-19 07:48:11,391 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:11,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 39 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-19 07:48:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-11-19 07:48:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 41 states have internal predecessors, (47), 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) [2022-11-19 07:48:11,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-19 07:48:11,402 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 2 [2022-11-19 07:48:11,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:11,404 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-19 07:48:11,405 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) [2022-11-19 07:48:11,405 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-19 07:48:11,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:48:11,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:11,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:11,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:48:11,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:11,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:11,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1730509016, now seen corresponding path program 1 times [2022-11-19 07:48:11,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:11,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810484907] [2022-11-19 07:48:11,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:11,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:11,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:11,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:11,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810484907] [2022-11-19 07:48:11,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810484907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:11,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:11,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:11,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783015577] [2022-11-19 07:48:11,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:11,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:48:11,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:11,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:48:11,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:48:11,540 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:11,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:11,631 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2022-11-19 07:48:11,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:48:11,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:48:11,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:11,632 INFO L225 Difference]: With dead ends: 69 [2022-11-19 07:48:11,633 INFO L226 Difference]: Without dead ends: 69 [2022-11-19 07:48:11,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:11,634 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 50 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:11,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 34 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:11,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-19 07:48:11,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 43. [2022-11-19 07:48:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 42 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) [2022-11-19 07:48:11,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-11-19 07:48:11,640 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 8 [2022-11-19 07:48:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:11,641 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-11-19 07:48:11,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:11,641 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-11-19 07:48:11,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:48:11,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:11,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:11,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:48:11,642 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:11,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1730507620, now seen corresponding path program 1 times [2022-11-19 07:48:11,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:11,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475148610] [2022-11-19 07:48:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:11,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:11,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:11,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:11,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475148610] [2022-11-19 07:48:11,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475148610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:11,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:11,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:11,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6824177] [2022-11-19 07:48:11,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:11,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:48:11,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:11,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:48:11,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:48:11,733 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:11,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:11,824 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2022-11-19 07:48:11,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:48:11,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:48:11,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:11,825 INFO L225 Difference]: With dead ends: 48 [2022-11-19 07:48:11,825 INFO L226 Difference]: Without dead ends: 48 [2022-11-19 07:48:11,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:11,827 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 36 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:11,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 22 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:11,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-19 07:48:11,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2022-11-19 07:48:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.7) internal successors, (51), 43 states have internal predecessors, (51), 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) [2022-11-19 07:48:11,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2022-11-19 07:48:11,832 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 8 [2022-11-19 07:48:11,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:11,832 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2022-11-19 07:48:11,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:11,833 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2022-11-19 07:48:11,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:48:11,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:11,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:11,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:48:11,834 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:11,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:11,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1730507621, now seen corresponding path program 1 times [2022-11-19 07:48:11,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:11,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446035135] [2022-11-19 07:48:11,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:11,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:11,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:11,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:11,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446035135] [2022-11-19 07:48:11,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446035135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:11,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:11,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:48:11,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615569959] [2022-11-19 07:48:11,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:11,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:48:11,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:11,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:48:11,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:48:11,993 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:12,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:12,119 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2022-11-19 07:48:12,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:48:12,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:48:12,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:12,120 INFO L225 Difference]: With dead ends: 74 [2022-11-19 07:48:12,120 INFO L226 Difference]: Without dead ends: 74 [2022-11-19 07:48:12,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:12,122 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 36 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:12,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 40 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:12,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-19 07:48:12,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 59. [2022-11-19 07:48:12,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.5777777777777777) internal successors, (71), 58 states have internal predecessors, (71), 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) [2022-11-19 07:48:12,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2022-11-19 07:48:12,128 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 8 [2022-11-19 07:48:12,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:12,129 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2022-11-19 07:48:12,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:12,129 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2022-11-19 07:48:12,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:48:12,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:12,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:12,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:48:12,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:12,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:12,131 INFO L85 PathProgramCache]: Analyzing trace with hash 866437451, now seen corresponding path program 1 times [2022-11-19 07:48:12,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:12,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552174399] [2022-11-19 07:48:12,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:12,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:12,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:12,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:12,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552174399] [2022-11-19 07:48:12,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552174399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:12,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:12,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:12,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408771053] [2022-11-19 07:48:12,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:12,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:48:12,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:12,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:48:12,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:48:12,404 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-19 07:48:12,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:12,486 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2022-11-19 07:48:12,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:48:12,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:48:12,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:12,491 INFO L225 Difference]: With dead ends: 58 [2022-11-19 07:48:12,491 INFO L226 Difference]: Without dead ends: 58 [2022-11-19 07:48:12,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:48:12,494 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:12,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 38 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:12,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-19 07:48:12,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-19 07:48:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 57 states have internal predecessors, (70), 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) [2022-11-19 07:48:12,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2022-11-19 07:48:12,500 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 10 [2022-11-19 07:48:12,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:12,501 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2022-11-19 07:48:12,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-19 07:48:12,501 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2022-11-19 07:48:12,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:48:12,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:12,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:12,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:48:12,502 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:12,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:12,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1463010864, now seen corresponding path program 1 times [2022-11-19 07:48:12,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:12,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162922228] [2022-11-19 07:48:12,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:12,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:12,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:12,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162922228] [2022-11-19 07:48:12,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162922228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:12,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:12,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:48:12,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277001266] [2022-11-19 07:48:12,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:12,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:48:12,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:12,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:48:12,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:48:12,780 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:12,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:12,947 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2022-11-19 07:48:12,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:48:12,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 07:48:12,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:12,949 INFO L225 Difference]: With dead ends: 63 [2022-11-19 07:48:12,949 INFO L226 Difference]: Without dead ends: 63 [2022-11-19 07:48:12,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:48:12,951 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 50 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:12,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 61 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:12,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-19 07:48:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 53. [2022-11-19 07:48:12,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.525) internal successors, (61), 52 states have internal predecessors, (61), 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) [2022-11-19 07:48:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2022-11-19 07:48:12,957 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 12 [2022-11-19 07:48:12,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:12,957 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2022-11-19 07:48:12,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:12,958 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2022-11-19 07:48:12,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:48:12,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:12,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:12,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:48:12,959 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:12,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:12,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1462999879, now seen corresponding path program 1 times [2022-11-19 07:48:12,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:12,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530113200] [2022-11-19 07:48:12,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:12,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:13,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:13,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:13,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530113200] [2022-11-19 07:48:13,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530113200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:13,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:13,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:48:13,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654696525] [2022-11-19 07:48:13,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:13,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:48:13,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:48:13,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:48:13,058 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:13,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:13,151 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2022-11-19 07:48:13,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:48:13,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 07:48:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:13,156 INFO L225 Difference]: With dead ends: 69 [2022-11-19 07:48:13,156 INFO L226 Difference]: Without dead ends: 69 [2022-11-19 07:48:13,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:13,160 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 40 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:13,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 50 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:13,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-19 07:48:13,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2022-11-19 07:48:13,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 61 states have internal predecessors, (77), 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) [2022-11-19 07:48:13,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2022-11-19 07:48:13,184 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 12 [2022-11-19 07:48:13,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:13,184 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2022-11-19 07:48:13,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:13,187 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2022-11-19 07:48:13,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 07:48:13,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:13,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:13,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:48:13,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:13,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:13,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1098836238, now seen corresponding path program 1 times [2022-11-19 07:48:13,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:13,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514426284] [2022-11-19 07:48:13,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:13,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:13,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:13,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:13,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514426284] [2022-11-19 07:48:13,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514426284] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:48:13,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730465081] [2022-11-19 07:48:13,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:13,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:48:13,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:48:13,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:48:13,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:48:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:13,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:48:13,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:48:13,563 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:48:13,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:13,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:48:13,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:13,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730465081] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:48:13,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [367484410] [2022-11-19 07:48:13,685 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-19 07:48:13,686 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:48:13,692 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:48:13,698 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:48:13,699 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:48:13,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:48:13,828 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 [2022-11-19 07:48:13,844 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 [2022-11-19 07:48:13,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,858 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 30 treesize of output 21 [2022-11-19 07:48:13,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:13,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:13,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,930 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 34 treesize of output 21 [2022-11-19 07:48:13,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:48:13,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-19 07:48:13,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:13,992 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 34 treesize of output 21 [2022-11-19 07:48:14,278 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:48:16,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [367484410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:16,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:48:16,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [3, 3, 3] total 13 [2022-11-19 07:48:16,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158689042] [2022-11-19 07:48:16,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:16,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 07:48:16,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:16,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 07:48:16,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:48:16,343 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2022-11-19 07:48:16,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:16,751 INFO L93 Difference]: Finished difference Result 78 states and 94 transitions. [2022-11-19 07:48:16,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 07:48:16,751 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 15 [2022-11-19 07:48:16,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:16,753 INFO L225 Difference]: With dead ends: 78 [2022-11-19 07:48:16,753 INFO L226 Difference]: Without dead ends: 64 [2022-11-19 07:48:16,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:48:16,754 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:16,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 46 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:48:16,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-19 07:48:16,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-19 07:48:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 63 states have internal predecessors, (79), 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) [2022-11-19 07:48:16,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 79 transitions. [2022-11-19 07:48:16,758 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 79 transitions. Word has length 15 [2022-11-19 07:48:16,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:16,758 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 79 transitions. [2022-11-19 07:48:16,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2022-11-19 07:48:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 79 transitions. [2022-11-19 07:48:16,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 07:48:16,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:16,763 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:16,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:48:16,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:48:16,964 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:16,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:16,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1447780460, now seen corresponding path program 1 times [2022-11-19 07:48:16,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:16,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631985397] [2022-11-19 07:48:16,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:16,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:17,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:17,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631985397] [2022-11-19 07:48:17,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631985397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:17,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:17,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:48:17,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508515856] [2022-11-19 07:48:17,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:17,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:48:17,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:17,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:48:17,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:17,095 INFO L87 Difference]: Start difference. First operand 64 states and 79 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-11-19 07:48:17,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:17,194 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2022-11-19 07:48:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:48:17,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2022-11-19 07:48:17,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:17,196 INFO L225 Difference]: With dead ends: 72 [2022-11-19 07:48:17,196 INFO L226 Difference]: Without dead ends: 72 [2022-11-19 07:48:17,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:48:17,199 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:17,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 44 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:17,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-19 07:48:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2022-11-19 07:48:17,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 59 states have internal predecessors, (70), 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) [2022-11-19 07:48:17,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2022-11-19 07:48:17,233 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 15 [2022-11-19 07:48:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:17,233 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2022-11-19 07:48:17,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-11-19 07:48:17,234 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2022-11-19 07:48:17,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:48:17,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:17,235 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:17,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:48:17,235 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:17,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:17,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1986639017, now seen corresponding path program 1 times [2022-11-19 07:48:17,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:17,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14044749] [2022-11-19 07:48:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:17,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:17,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:17,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14044749] [2022-11-19 07:48:17,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14044749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:17,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:17,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:48:17,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765915598] [2022-11-19 07:48:17,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:17,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:48:17,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:17,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:48:17,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:48:17,567 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-11-19 07:48:17,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:17,748 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-11-19 07:48:17,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:48:17,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-19 07:48:17,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:17,749 INFO L225 Difference]: With dead ends: 76 [2022-11-19 07:48:17,749 INFO L226 Difference]: Without dead ends: 76 [2022-11-19 07:48:17,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:48:17,751 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 59 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:17,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 82 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-19 07:48:17,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 60. [2022-11-19 07:48:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.4375) internal successors, (69), 59 states have internal predecessors, (69), 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) [2022-11-19 07:48:17,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2022-11-19 07:48:17,761 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 19 [2022-11-19 07:48:17,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:17,762 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2022-11-19 07:48:17,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-11-19 07:48:17,762 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2022-11-19 07:48:17,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:48:17,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:17,764 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:17,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:48:17,765 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:17,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:17,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1456267282, now seen corresponding path program 1 times [2022-11-19 07:48:17,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:17,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52175450] [2022-11-19 07:48:17,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:17,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:18,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:18,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52175450] [2022-11-19 07:48:18,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52175450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:18,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:18,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:48:18,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745228496] [2022-11-19 07:48:18,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:18,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:48:18,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:18,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:48:18,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:48:18,136 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:18,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:18,336 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2022-11-19 07:48:18,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:48:18,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 07:48:18,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:18,337 INFO L225 Difference]: With dead ends: 75 [2022-11-19 07:48:18,338 INFO L226 Difference]: Without dead ends: 75 [2022-11-19 07:48:18,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:48:18,338 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 53 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:18,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 61 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:18,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-19 07:48:18,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 60. [2022-11-19 07:48:18,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 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) [2022-11-19 07:48:18,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2022-11-19 07:48:18,341 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 20 [2022-11-19 07:48:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:18,341 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2022-11-19 07:48:18,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:18,341 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2022-11-19 07:48:18,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 07:48:18,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:18,342 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:18,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:48:18,342 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:18,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:18,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2100354617, now seen corresponding path program 1 times [2022-11-19 07:48:18,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:18,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672833035] [2022-11-19 07:48:18,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:18,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:18,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:18,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:18,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672833035] [2022-11-19 07:48:18,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672833035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:18,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:18,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:48:18,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408176446] [2022-11-19 07:48:18,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:18,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:48:18,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:18,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:48:18,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:48:18,710 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 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) [2022-11-19 07:48:18,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:18,865 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2022-11-19 07:48:18,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:48:18,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 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 21 [2022-11-19 07:48:18,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:18,866 INFO L225 Difference]: With dead ends: 61 [2022-11-19 07:48:18,867 INFO L226 Difference]: Without dead ends: 61 [2022-11-19 07:48:18,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:48:18,867 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:18,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 53 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:18,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-19 07:48:18,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-11-19 07:48:18,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 59 states have internal predecessors, (67), 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) [2022-11-19 07:48:18,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2022-11-19 07:48:18,870 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 21 [2022-11-19 07:48:18,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:18,870 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2022-11-19 07:48:18,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 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) [2022-11-19 07:48:18,870 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2022-11-19 07:48:18,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 07:48:18,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:18,871 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:18,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:48:18,871 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:18,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:18,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1013749287, now seen corresponding path program 1 times [2022-11-19 07:48:18,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:18,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024132101] [2022-11-19 07:48:18,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:18,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:19,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:19,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024132101] [2022-11-19 07:48:19,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024132101] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:48:19,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103471222] [2022-11-19 07:48:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:19,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:48:19,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:48:19,167 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:48:19,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:48:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:19,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-19 07:48:19,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:48:19,301 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:48:19,341 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:48:19,342 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 11 treesize of output 11 [2022-11-19 07:48:19,371 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 [2022-11-19 07:48:19,419 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:19,419 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 18 treesize of output 16 [2022-11-19 07:48:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:19,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:48:19,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103471222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:19,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:48:19,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2022-11-19 07:48:19,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469333259] [2022-11-19 07:48:19,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:19,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:48:19,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:19,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:48:19,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:48:19,471 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2022-11-19 07:48:19,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:19,710 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2022-11-19 07:48:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:48:19,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 [2022-11-19 07:48:19,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:19,712 INFO L225 Difference]: With dead ends: 68 [2022-11-19 07:48:19,712 INFO L226 Difference]: Without dead ends: 67 [2022-11-19 07:48:19,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:48:19,713 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:19,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 90 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:19,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-19 07:48:19,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 60. [2022-11-19 07:48:19,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.375) internal successors, (66), 59 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2022-11-19 07:48:19,715 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 22 [2022-11-19 07:48:19,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:19,715 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2022-11-19 07:48:19,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2022-11-19 07:48:19,715 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2022-11-19 07:48:19,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 07:48:19,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:19,716 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:19,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:48:19,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-19 07:48:19,923 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:19,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:19,923 INFO L85 PathProgramCache]: Analyzing trace with hash 939258027, now seen corresponding path program 1 times [2022-11-19 07:48:19,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:19,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779183934] [2022-11-19 07:48:19,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:19,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:20,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:20,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779183934] [2022-11-19 07:48:20,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779183934] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:48:20,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51061916] [2022-11-19 07:48:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:20,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:48:20,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:48:20,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:48:20,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:48:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:20,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-19 07:48:20,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:48:20,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:48:20,363 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:48:20,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 07:48:20,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-19 07:48:20,440 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:48:20,441 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2022-11-19 07:48:20,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:20,482 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 30 treesize of output 25 [2022-11-19 07:48:20,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:20,539 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:20,540 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 24 treesize of output 15 [2022-11-19 07:48:20,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:20,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:48:20,744 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:20,745 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 19 treesize of output 20 [2022-11-19 07:48:20,756 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:20,757 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 33 treesize of output 33 [2022-11-19 07:48:20,763 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 20 treesize of output 18 [2022-11-19 07:48:20,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:20,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51061916] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:48:20,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1677481366] [2022-11-19 07:48:20,942 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-19 07:48:20,942 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:48:20,942 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:48:20,943 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:48:20,943 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:48:20,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:20,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:20,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:48:21,001 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 [2022-11-19 07:48:21,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,012 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 30 treesize of output 21 [2022-11-19 07:48:21,021 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 [2022-11-19 07:48:21,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:21,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:21,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,063 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 34 treesize of output 21 [2022-11-19 07:48:21,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,086 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 34 treesize of output 21 [2022-11-19 07:48:21,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-19 07:48:21,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:48:21,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 07:48:21,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,201 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 39 treesize of output 44 [2022-11-19 07:48:21,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,218 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 37 treesize of output 42 [2022-11-19 07:48:21,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,231 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 30 treesize of output 21 [2022-11-19 07:48:21,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,262 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 34 treesize of output 21 [2022-11-19 07:48:21,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,279 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 48 treesize of output 47 [2022-11-19 07:48:21,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,302 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 46 treesize of output 45 [2022-11-19 07:48:21,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-11-19 07:48:21,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-19 07:48:21,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,388 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 34 treesize of output 21 [2022-11-19 07:48:21,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-11-19 07:48:21,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,483 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 30 treesize of output 21 [2022-11-19 07:48:21,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:21,526 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-19 07:48:21,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 186 treesize of output 140 [2022-11-19 07:48:21,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-19 07:48:21,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:21,607 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:21,624 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-19 07:48:21,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 152 [2022-11-19 07:48:21,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 86 [2022-11-19 07:48:21,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,706 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 34 treesize of output 21 [2022-11-19 07:48:21,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,748 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 34 treesize of output 21 [2022-11-19 07:48:21,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:21,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:21,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:21,815 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-19 07:48:21,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 204 treesize of output 164 [2022-11-19 07:48:21,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:21,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-19 07:48:22,311 INFO L321 Elim1Store]: treesize reduction 254, result has 14.2 percent of original size [2022-11-19 07:48:22,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 862 treesize of output 848 [2022-11-19 07:48:22,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:22,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:22,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:22,585 INFO L321 Elim1Store]: treesize reduction 422, result has 11.0 percent of original size [2022-11-19 07:48:22,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 33 case distinctions, treesize of input 943 treesize of output 591 [2022-11-19 07:48:22,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:22,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:22,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:22,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:22,822 INFO L321 Elim1Store]: treesize reduction 426, result has 10.1 percent of original size [2022-11-19 07:48:22,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 943 treesize of output 785 [2022-11-19 07:48:22,912 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 07:48:22,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 947 treesize of output 930 [2022-11-19 07:48:23,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,231 INFO L321 Elim1Store]: treesize reduction 474, result has 8.7 percent of original size [2022-11-19 07:48:23,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 39 case distinctions, treesize of input 952 treesize of output 603 [2022-11-19 07:48:23,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,432 INFO L321 Elim1Store]: treesize reduction 486, result has 7.8 percent of original size [2022-11-19 07:48:23,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 39 case distinctions, treesize of input 952 treesize of output 797 [2022-11-19 07:48:23,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,478 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 951 treesize of output 930 [2022-11-19 07:48:23,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,932 INFO L321 Elim1Store]: treesize reduction 552, result has 8.9 percent of original size [2022-11-19 07:48:23,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 9 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 47 case distinctions, treesize of input 961 treesize of output 615 [2022-11-19 07:48:23,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 951 treesize of output 930 [2022-11-19 07:48:23,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:23,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:23,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:24,159 INFO L321 Elim1Store]: treesize reduction 576, result has 8.0 percent of original size [2022-11-19 07:48:24,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 14 new quantified variables, introduced 47 case distinctions, treesize of input 963 treesize of output 811 [2022-11-19 07:48:24,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:48:24,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:24,270 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 [2022-11-19 07:48:24,275 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 15 treesize of output 1 [2022-11-19 07:48:24,280 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 [2022-11-19 07:48:24,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:24,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:24,301 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 19 treesize of output 1 [2022-11-19 07:48:24,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:24,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:24,323 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 19 treesize of output 1 [2022-11-19 07:48:24,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:24,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:24,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:24,335 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:24,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-19 07:48:24,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:24,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:24,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:24,351 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:24,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:48:24,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:24,650 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:48:24,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:48:24,762 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:48:24,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:48:24,887 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-19 07:48:24,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 203 [2022-11-19 07:48:25,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:25,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:25,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:25,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:48:25,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:25,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:48:25,285 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-19 07:48:25,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 354 [2022-11-19 07:48:25,315 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:48:25,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 355 treesize of output 352 [2022-11-19 07:48:25,349 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:48:25,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 344 [2022-11-19 07:48:25,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:25,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:25,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:25,596 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:48:25,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 392 treesize of output 381 [2022-11-19 07:48:25,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:25,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:25,624 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 383 treesize of output 362 [2022-11-19 07:48:25,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:25,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:25,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:25,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:25,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:25,663 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:48:25,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 384 treesize of output 373 [2022-11-19 07:48:25,776 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:48:27,425 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2181#(and (= |ULTIMATE.start_main_~y~0#1.offset| 0) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~list~0#1.base| 0) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2022-11-19 07:48:27,426 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:48:27,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:48:27,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2022-11-19 07:48:27,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082026131] [2022-11-19 07:48:27,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:48:27,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-19 07:48:27,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:27,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-19 07:48:27,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1233, Unknown=2, NotChecked=0, Total=1406 [2022-11-19 07:48:27,428 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:27,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:27,931 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2022-11-19 07:48:27,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 07:48:27,932 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 07:48:27,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:27,932 INFO L225 Difference]: With dead ends: 97 [2022-11-19 07:48:27,933 INFO L226 Difference]: Without dead ends: 97 [2022-11-19 07:48:27,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=306, Invalid=1854, Unknown=2, NotChecked=0, Total=2162 [2022-11-19 07:48:27,934 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 149 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 194 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:27,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 137 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 251 Invalid, 0 Unknown, 194 Unchecked, 0.2s Time] [2022-11-19 07:48:27,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-19 07:48:27,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 62. [2022-11-19 07:48:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 50 states have (on average 1.36) internal successors, (68), 61 states have internal predecessors, (68), 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) [2022-11-19 07:48:27,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-11-19 07:48:27,937 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 22 [2022-11-19 07:48:27,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:27,937 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-11-19 07:48:27,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-11-19 07:48:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 07:48:27,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:27,938 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:27,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:48:28,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-19 07:48:28,144 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:28,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:28,145 INFO L85 PathProgramCache]: Analyzing trace with hash 939256631, now seen corresponding path program 1 times [2022-11-19 07:48:28,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:28,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117137616] [2022-11-19 07:48:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:28,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:28,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:28,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117137616] [2022-11-19 07:48:28,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117137616] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:48:28,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309753905] [2022-11-19 07:48:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:28,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:48:28,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:48:28,423 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:48:28,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:48:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:28,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-19 07:48:28,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:48:28,551 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:48:28,581 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:48:28,581 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 11 treesize of output 11 [2022-11-19 07:48:28,603 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 [2022-11-19 07:48:28,654 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:48:28,654 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-19 07:48:28,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:28,699 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 31 treesize of output 26 [2022-11-19 07:48:28,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:28,798 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:28,798 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 25 treesize of output 16 [2022-11-19 07:48:28,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-11-19 07:48:28,835 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:28,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:48:29,185 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:29,185 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 49 treesize of output 53 [2022-11-19 07:48:29,338 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:29,339 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 [2022-11-19 07:48:29,348 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:29,348 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 30 treesize of output 30 [2022-11-19 07:48:29,353 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 9 treesize of output 7 [2022-11-19 07:48:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:29,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309753905] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:48:29,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [871598801] [2022-11-19 07:48:29,442 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-19 07:48:29,442 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:48:29,442 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:48:29,443 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:48:29,443 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:48:29,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:48:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,489 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 30 treesize of output 21 [2022-11-19 07:48:29,498 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 [2022-11-19 07:48:29,505 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 [2022-11-19 07:48:29,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:29,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,532 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 34 treesize of output 21 [2022-11-19 07:48:29,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:29,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:48:29,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-19 07:48:29,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,584 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 34 treesize of output 21 [2022-11-19 07:48:29,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 07:48:29,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,654 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 39 treesize of output 44 [2022-11-19 07:48:29,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,674 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 37 treesize of output 42 [2022-11-19 07:48:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,690 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 30 treesize of output 21 [2022-11-19 07:48:29,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,716 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 34 treesize of output 21 [2022-11-19 07:48:29,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,740 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 48 treesize of output 47 [2022-11-19 07:48:29,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,755 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 46 treesize of output 45 [2022-11-19 07:48:29,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,786 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 34 treesize of output 21 [2022-11-19 07:48:29,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-19 07:48:29,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-11-19 07:48:29,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-11-19 07:48:29,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:29,940 INFO L321 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2022-11-19 07:48:29,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 239 treesize of output 189 [2022-11-19 07:48:29,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,966 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 07:48:29,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 141 [2022-11-19 07:48:29,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:29,988 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 30 treesize of output 21 [2022-11-19 07:48:30,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:30,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:30,044 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-19 07:48:30,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 152 [2022-11-19 07:48:30,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 86 [2022-11-19 07:48:30,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,088 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 34 treesize of output 21 [2022-11-19 07:48:30,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,123 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 34 treesize of output 21 [2022-11-19 07:48:30,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:30,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:30,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:30,176 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-19 07:48:30,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 204 treesize of output 164 [2022-11-19 07:48:30,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-19 07:48:30,575 INFO L321 Elim1Store]: treesize reduction 226, result has 14.4 percent of original size [2022-11-19 07:48:30,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 692 treesize of output 690 [2022-11-19 07:48:30,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:30,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:30,738 INFO L321 Elim1Store]: treesize reduction 104, result has 17.5 percent of original size [2022-11-19 07:48:30,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 31 case distinctions, treesize of input 765 treesize of output 505 [2022-11-19 07:48:30,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:30,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:30,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:30,852 INFO L321 Elim1Store]: treesize reduction 200, result has 14.5 percent of original size [2022-11-19 07:48:30,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 765 treesize of output 751 [2022-11-19 07:48:30,904 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 07:48:30,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 769 treesize of output 752 [2022-11-19 07:48:31,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,073 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-19 07:48:31,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 774 treesize of output 517 [2022-11-19 07:48:31,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,099 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 773 treesize of output 752 [2022-11-19 07:48:31,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,177 INFO L321 Elim1Store]: treesize reduction 220, result has 10.9 percent of original size [2022-11-19 07:48:31,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 774 treesize of output 763 [2022-11-19 07:48:31,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,416 INFO L321 Elim1Store]: treesize reduction 146, result has 14.1 percent of original size [2022-11-19 07:48:31,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 783 treesize of output 529 [2022-11-19 07:48:31,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:31,537 INFO L321 Elim1Store]: treesize reduction 272, result has 11.7 percent of original size [2022-11-19 07:48:31,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 785 treesize of output 777 [2022-11-19 07:48:31,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 773 treesize of output 752 [2022-11-19 07:48:31,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:48:31,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:31,646 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 [2022-11-19 07:48:31,651 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 [2022-11-19 07:48:31,657 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 15 treesize of output 1 [2022-11-19 07:48:31,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:31,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:31,686 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 07:48:31,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,704 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:31,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-19 07:48:31,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:31,722 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:31,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:48:31,734 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 19 treesize of output 1 [2022-11-19 07:48:31,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:31,994 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:48:31,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:48:32,084 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:48:32,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:48:32,181 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-19 07:48:32,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 203 [2022-11-19 07:48:32,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:32,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:32,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:48:32,368 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-19 07:48:32,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 201 treesize of output 196 [2022-11-19 07:48:32,394 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:48:32,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 193 treesize of output 202 [2022-11-19 07:48:32,421 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:48:32,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 189 treesize of output 198 [2022-11-19 07:48:32,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:32,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:32,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:32,919 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:48:32,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1276 treesize of output 1209 [2022-11-19 07:48:32,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:32,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:32,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:32,969 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:48:32,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1244 treesize of output 1177 [2022-11-19 07:48:33,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:33,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:33,021 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 1211 treesize of output 1158 [2022-11-19 07:48:33,303 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:48:34,914 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2530#(and (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:48:34,915 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:48:34,915 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:48:34,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 21 [2022-11-19 07:48:34,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058014685] [2022-11-19 07:48:34,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:48:34,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-19 07:48:34,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:34,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-19 07:48:34,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1292, Unknown=3, NotChecked=0, Total=1482 [2022-11-19 07:48:34,917 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:35,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:35,571 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2022-11-19 07:48:35,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:48:35,571 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 07:48:35,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:35,572 INFO L225 Difference]: With dead ends: 80 [2022-11-19 07:48:35,572 INFO L226 Difference]: Without dead ends: 80 [2022-11-19 07:48:35,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=354, Invalid=2093, Unknown=3, NotChecked=0, Total=2450 [2022-11-19 07:48:35,574 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 130 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:35,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 105 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 337 Invalid, 0 Unknown, 95 Unchecked, 0.3s Time] [2022-11-19 07:48:35,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-19 07:48:35,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2022-11-19 07:48:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 63 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:35,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2022-11-19 07:48:35,576 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 22 [2022-11-19 07:48:35,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:35,576 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2022-11-19 07:48:35,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:35,577 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2022-11-19 07:48:35,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 07:48:35,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:35,577 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:35,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:48:35,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-19 07:48:35,778 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:35,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:35,778 INFO L85 PathProgramCache]: Analyzing trace with hash 939256632, now seen corresponding path program 1 times [2022-11-19 07:48:35,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:35,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384827964] [2022-11-19 07:48:35,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:35,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:36,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:36,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:36,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384827964] [2022-11-19 07:48:36,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384827964] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:48:36,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565752005] [2022-11-19 07:48:36,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:36,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:48:36,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:48:36,305 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:48:36,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:48:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:36,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-19 07:48:36,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:48:36,442 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:48:36,446 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:48:36,483 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:48:36,483 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 11 treesize of output 11 [2022-11-19 07:48:36,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-11-19 07:48:36,516 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 [2022-11-19 07:48:36,526 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 [2022-11-19 07:48:36,567 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:48:36,567 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-19 07:48:36,572 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 18 treesize of output 20 [2022-11-19 07:48:36,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:36,616 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 21 treesize of output 20 [2022-11-19 07:48:36,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:36,623 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 31 treesize of output 26 [2022-11-19 07:48:36,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:36,693 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:48:36,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:36,709 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:36,709 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 25 treesize of output 16 [2022-11-19 07:48:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:36,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:48:37,137 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:37,138 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 37 treesize of output 38 [2022-11-19 07:48:37,146 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:37,146 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 29 treesize of output 30 [2022-11-19 07:48:37,158 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:37,159 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 52 treesize of output 52 [2022-11-19 07:48:37,172 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:37,172 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 82 treesize of output 78 [2022-11-19 07:48:37,180 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 30 [2022-11-19 07:48:37,185 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 62 treesize of output 58 [2022-11-19 07:48:37,253 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:37,254 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 [2022-11-19 07:48:37,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:37,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,260 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-19 07:48:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:37,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565752005] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:48:37,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [289799304] [2022-11-19 07:48:37,514 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-19 07:48:37,515 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:48:37,515 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:48:37,515 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:48:37,516 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:48:37,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:48:37,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,560 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 30 treesize of output 21 [2022-11-19 07:48:37,568 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 [2022-11-19 07:48:37,575 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 [2022-11-19 07:48:37,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:37,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,601 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 34 treesize of output 21 [2022-11-19 07:48:37,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:37,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-19 07:48:37,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:48:37,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,655 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 34 treesize of output 21 [2022-11-19 07:48:37,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 07:48:37,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,725 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 39 treesize of output 44 [2022-11-19 07:48:37,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,739 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 37 treesize of output 42 [2022-11-19 07:48:37,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,753 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 30 treesize of output 21 [2022-11-19 07:48:37,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,782 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 48 treesize of output 47 [2022-11-19 07:48:37,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,795 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 34 treesize of output 21 [2022-11-19 07:48:37,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,813 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 46 treesize of output 45 [2022-11-19 07:48:37,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-19 07:48:37,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,862 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 34 treesize of output 21 [2022-11-19 07:48:37,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-11-19 07:48:37,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-11-19 07:48:37,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:37,994 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 30 treesize of output 21 [2022-11-19 07:48:38,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:38,040 INFO L321 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2022-11-19 07:48:38,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 239 treesize of output 189 [2022-11-19 07:48:38,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,067 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 07:48:38,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 141 [2022-11-19 07:48:38,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:38,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:38,154 INFO L321 Elim1Store]: treesize reduction 55, result has 19.1 percent of original size [2022-11-19 07:48:38,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 248 treesize of output 201 [2022-11-19 07:48:38,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,183 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 07:48:38,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 162 treesize of output 153 [2022-11-19 07:48:38,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,207 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 34 treesize of output 21 [2022-11-19 07:48:38,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,242 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 34 treesize of output 21 [2022-11-19 07:48:38,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:38,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:38,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:38,298 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-19 07:48:38,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 204 treesize of output 164 [2022-11-19 07:48:38,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-19 07:48:38,752 INFO L321 Elim1Store]: treesize reduction 226, result has 14.4 percent of original size [2022-11-19 07:48:38,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 692 treesize of output 690 [2022-11-19 07:48:38,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:38,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:38,906 INFO L321 Elim1Store]: treesize reduction 104, result has 17.5 percent of original size [2022-11-19 07:48:38,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 31 case distinctions, treesize of input 765 treesize of output 505 [2022-11-19 07:48:38,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:38,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:38,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,033 INFO L321 Elim1Store]: treesize reduction 200, result has 14.5 percent of original size [2022-11-19 07:48:39,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 765 treesize of output 751 [2022-11-19 07:48:39,079 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 07:48:39,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 769 treesize of output 752 [2022-11-19 07:48:39,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,255 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-19 07:48:39,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 774 treesize of output 517 [2022-11-19 07:48:39,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,353 INFO L321 Elim1Store]: treesize reduction 220, result has 10.9 percent of original size [2022-11-19 07:48:39,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 774 treesize of output 763 [2022-11-19 07:48:39,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,376 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 773 treesize of output 752 [2022-11-19 07:48:39,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,526 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,612 INFO L321 Elim1Store]: treesize reduction 146, result has 14.1 percent of original size [2022-11-19 07:48:39,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 783 treesize of output 529 [2022-11-19 07:48:39,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:39,741 INFO L321 Elim1Store]: treesize reduction 272, result has 11.7 percent of original size [2022-11-19 07:48:39,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 785 treesize of output 777 [2022-11-19 07:48:39,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 773 treesize of output 752 [2022-11-19 07:48:39,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:48:39,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:39,874 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 [2022-11-19 07:48:39,879 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 [2022-11-19 07:48:39,884 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 15 treesize of output 1 [2022-11-19 07:48:39,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:39,903 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 19 treesize of output 1 [2022-11-19 07:48:39,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:39,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,931 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:39,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:48:39,939 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 19 treesize of output 1 [2022-11-19 07:48:39,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:39,953 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:39,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-19 07:48:40,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:40,213 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:48:40,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:48:40,302 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 07:48:40,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:48:40,391 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-19 07:48:40,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 203 [2022-11-19 07:48:40,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:40,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:40,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:48:40,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:40,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:40,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:48:40,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:40,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:48:40,745 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:48:40,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 356 treesize of output 353 [2022-11-19 07:48:40,776 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-19 07:48:40,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 339 [2022-11-19 07:48:40,804 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:48:40,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 340 treesize of output 337 [2022-11-19 07:48:41,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:41,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:41,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:41,139 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:48:41,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 688 treesize of output 657 [2022-11-19 07:48:41,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:41,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:41,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:41,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:41,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:41,191 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:48:41,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 672 treesize of output 641 [2022-11-19 07:48:41,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:41,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:41,223 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 655 treesize of output 622 [2022-11-19 07:48:41,372 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:48:43,001 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2861#(and (or (not (<= 0 |ULTIMATE.start_main_~list~0#1.offset|)) (not (<= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~list~0#1.base|)))) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:48:43,001 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:48:43,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:48:43,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 19 [2022-11-19 07:48:43,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234685790] [2022-11-19 07:48:43,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:48:43,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-19 07:48:43,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:43,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-19 07:48:43,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1238, Unknown=1, NotChecked=0, Total=1406 [2022-11-19 07:48:43,003 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 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) [2022-11-19 07:48:43,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:43,651 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2022-11-19 07:48:43,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 07:48:43,652 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 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 [2022-11-19 07:48:43,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:43,652 INFO L225 Difference]: With dead ends: 98 [2022-11-19 07:48:43,652 INFO L226 Difference]: Without dead ends: 98 [2022-11-19 07:48:43,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=306, Invalid=1855, Unknown=1, NotChecked=0, Total=2162 [2022-11-19 07:48:43,654 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 157 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 196 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:43,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 112 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 264 Invalid, 0 Unknown, 196 Unchecked, 0.3s Time] [2022-11-19 07:48:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-19 07:48:43,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 75. [2022-11-19 07:48:43,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 74 states have internal predecessors, (89), 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) [2022-11-19 07:48:43,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2022-11-19 07:48:43,657 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 22 [2022-11-19 07:48:43,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:43,657 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2022-11-19 07:48:43,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 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) [2022-11-19 07:48:43,657 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2022-11-19 07:48:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 07:48:43,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:43,658 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:43,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:48:43,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-19 07:48:43,864 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:43,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:43,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1714033067, now seen corresponding path program 1 times [2022-11-19 07:48:43,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:43,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976461693] [2022-11-19 07:48:43,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:43,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:44,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:44,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:44,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976461693] [2022-11-19 07:48:44,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976461693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:44,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:44,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:48:44,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969310921] [2022-11-19 07:48:44,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:44,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:48:44,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:44,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:48:44,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:48:44,280 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:44,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:44,498 INFO L93 Difference]: Finished difference Result 83 states and 95 transitions. [2022-11-19 07:48:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 07:48:44,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 07:48:44,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:44,499 INFO L225 Difference]: With dead ends: 83 [2022-11-19 07:48:44,499 INFO L226 Difference]: Without dead ends: 83 [2022-11-19 07:48:44,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-19 07:48:44,500 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 51 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:44,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 60 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:48:44,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-19 07:48:44,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2022-11-19 07:48:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 74 states have internal predecessors, (88), 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) [2022-11-19 07:48:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions. [2022-11-19 07:48:44,503 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 24 [2022-11-19 07:48:44,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:44,503 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions. [2022-11-19 07:48:44,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:44,503 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions. [2022-11-19 07:48:44,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 07:48:44,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:44,503 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:44,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 07:48:44,504 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:48:44,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:44,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2081668364, now seen corresponding path program 1 times [2022-11-19 07:48:44,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:44,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986363345] [2022-11-19 07:48:44,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:44,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:44,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:44,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:44,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986363345] [2022-11-19 07:48:44,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986363345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:48:44,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459461518] [2022-11-19 07:48:44,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:44,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:48:44,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:48:44,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:48:44,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:48:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:44,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-19 07:48:44,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:48:44,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:48:44,933 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:48:44,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 07:48:44,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-19 07:48:44,984 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:48:44,984 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2022-11-19 07:48:45,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,031 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 30 treesize of output 25 [2022-11-19 07:48:45,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:45,077 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:45,078 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 24 treesize of output 15 [2022-11-19 07:48:45,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:45,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:48:45,272 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:45,272 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 19 treesize of output 20 [2022-11-19 07:48:45,286 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:45,287 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 33 treesize of output 33 [2022-11-19 07:48:45,292 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 20 treesize of output 18 [2022-11-19 07:48:45,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:45,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459461518] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:48:45,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1757036237] [2022-11-19 07:48:45,443 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-19 07:48:45,443 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:48:45,444 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:48:45,444 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:48:45,444 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:48:45,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:48:45,487 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 [2022-11-19 07:48:45,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,495 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 30 treesize of output 21 [2022-11-19 07:48:45,503 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 [2022-11-19 07:48:45,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,521 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 34 treesize of output 21 [2022-11-19 07:48:45,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:45,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:45,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-19 07:48:45,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:48:45,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,581 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 34 treesize of output 21 [2022-11-19 07:48:45,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 07:48:45,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,642 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 30 treesize of output 21 [2022-11-19 07:48:45,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,653 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 [2022-11-19 07:48:45,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,664 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 [2022-11-19 07:48:45,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:45,689 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 42 treesize of output 43 [2022-11-19 07:48:45,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,702 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 34 treesize of output 21 [2022-11-19 07:48:45,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:45,719 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 42 treesize of output 43 [2022-11-19 07:48:45,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2022-11-19 07:48:45,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-19 07:48:45,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-19 07:48:45,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,837 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 34 treesize of output 21 [2022-11-19 07:48:45,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 54 [2022-11-19 07:48:45,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,968 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 30 treesize of output 21 [2022-11-19 07:48:45,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:45,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 70 [2022-11-19 07:48:46,033 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-19 07:48:46,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 256 treesize of output 178 [2022-11-19 07:48:46,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:46,120 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-19 07:48:46,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 265 treesize of output 190 [2022-11-19 07:48:46,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 82 [2022-11-19 07:48:46,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,198 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 34 treesize of output 21 [2022-11-19 07:48:46,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-19 07:48:46,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:46,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:46,412 INFO L321 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2022-11-19 07:48:46,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 327 treesize of output 239 [2022-11-19 07:48:46,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 94 [2022-11-19 07:48:46,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:46,477 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 34 treesize of output 21 [2022-11-19 07:48:47,154 INFO L321 Elim1Store]: treesize reduction 448, result has 12.8 percent of original size [2022-11-19 07:48:47,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 885 treesize of output 889 [2022-11-19 07:48:47,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:47,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:47,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:47,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:48,001 INFO L321 Elim1Store]: treesize reduction 200, result has 18.4 percent of original size [2022-11-19 07:48:48,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 4 disjoint index pairs (out of 66 index pairs), introduced 13 new quantified variables, introduced 70 case distinctions, treesize of input 2028 treesize of output 1253 [2022-11-19 07:48:48,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:48,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:48,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:48,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:48:48,838 INFO L321 Elim1Store]: treesize reduction 284, result has 20.4 percent of original size [2022-11-19 07:48:48,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 49 case distinctions, treesize of input 2020 treesize of output 1979 [2022-11-19 07:48:48,912 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 07:48:48,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2008 treesize of output 1975 [2022-11-19 07:48:58,294 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 13 treesize of output 9 [2022-11-19 07:48:58,300 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 19 treesize of output 1 [2022-11-19 07:48:58,305 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 13 treesize of output 9 [2022-11-19 07:48:58,331 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:48:58,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-19 07:48:58,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2022-11-19 07:48:58,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:58,353 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 23 treesize of output 22 [2022-11-19 07:48:58,359 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 19 treesize of output 1 [2022-11-19 07:48:58,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:58,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-19 07:48:58,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:48:58,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:58,409 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 15 treesize of output 1 [2022-11-19 07:48:58,414 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 [2022-11-19 07:48:58,419 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 [2022-11-19 07:48:58,432 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 19 treesize of output 1 [2022-11-19 07:48:58,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:58,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:58,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:58,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:58,494 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-19 07:48:58,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-11-19 07:48:58,508 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:48:58,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 29 [2022-11-19 07:48:58,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:58,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:58,531 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:58,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:48:58,540 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 19 treesize of output 1 [2022-11-19 07:48:58,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:58,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:58,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:58,556 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:48:58,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:48:58,662 INFO L321 Elim1Store]: treesize reduction 31, result has 32.6 percent of original size [2022-11-19 07:48:58,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 43 [2022-11-19 07:48:58,707 INFO L321 Elim1Store]: treesize reduction 36, result has 37.9 percent of original size [2022-11-19 07:48:58,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 23 treesize of output 33 [2022-11-19 07:48:58,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-19 07:48:58,860 INFO L321 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2022-11-19 07:48:58,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-19 07:48:58,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-19 07:48:58,991 INFO L321 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2022-11-19 07:48:58,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-19 07:48:59,143 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-19 07:48:59,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 160 treesize of output 194 [2022-11-19 07:48:59,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:48:59,212 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 [2022-11-19 07:48:59,219 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 15 treesize of output 1 [2022-11-19 07:48:59,225 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 [2022-11-19 07:48:59,249 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 19 treesize of output 1 [2022-11-19 07:48:59,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:59,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:59,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:48:59,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:48:59,328 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-19 07:48:59,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-11-19 07:48:59,383 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-19 07:48:59,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 96 treesize of output 101 [2022-11-19 07:48:59,437 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:49:01,287 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3417#(and (<= 0 |#NULL.base|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~y~0#1.offset|) (<= |ULTIMATE.start_main_~y~0#1.offset| 0) (<= |#NULL.base| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~list~0#1.base| 0) (= |ULTIMATE.start_main_#res#1| 0))' at error location [2022-11-19 07:49:01,287 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:49:01,288 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:49:01,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2022-11-19 07:49:01,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320236594] [2022-11-19 07:49:01,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:49:01,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-19 07:49:01,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:49:01,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-19 07:49:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1512, Unknown=5, NotChecked=0, Total=1722 [2022-11-19 07:49:01,290 INFO L87 Difference]: Start difference. First operand 75 states and 88 transitions. Second operand has 20 states, 20 states have (on average 2.65) internal successors, (53), 19 states have internal predecessors, (53), 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) [2022-11-19 07:49:01,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:49:01,836 INFO L93 Difference]: Finished difference Result 96 states and 105 transitions. [2022-11-19 07:49:01,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:49:01,837 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.65) internal successors, (53), 19 states have internal predecessors, (53), 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 26 [2022-11-19 07:49:01,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:49:01,838 INFO L225 Difference]: With dead ends: 96 [2022-11-19 07:49:01,838 INFO L226 Difference]: Without dead ends: 96 [2022-11-19 07:49:01,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 859 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=389, Invalid=2468, Unknown=5, NotChecked=0, Total=2862 [2022-11-19 07:49:01,839 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 98 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:49:01,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 128 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 261 Invalid, 0 Unknown, 158 Unchecked, 0.2s Time] [2022-11-19 07:49:01,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-19 07:49:01,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 75. [2022-11-19 07:49:01,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.380952380952381) internal successors, (87), 74 states have internal predecessors, (87), 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) [2022-11-19 07:49:01,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2022-11-19 07:49:01,842 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 26 [2022-11-19 07:49:01,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:49:01,842 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2022-11-19 07:49:01,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.65) internal successors, (53), 19 states have internal predecessors, (53), 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) [2022-11-19 07:49:01,842 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2022-11-19 07:49:01,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 07:49:01,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:49:01,843 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:49:01,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:49:02,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:49:02,052 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:49:02,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:49:02,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2081666968, now seen corresponding path program 1 times [2022-11-19 07:49:02,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:49:02,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053484775] [2022-11-19 07:49:02,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:02,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:49:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:02,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:49:02,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:49:02,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053484775] [2022-11-19 07:49:02,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053484775] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:49:02,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161798983] [2022-11-19 07:49:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:02,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:49:02,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:49:02,771 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:49:02,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:49:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:02,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-19 07:49:02,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:49:02,921 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:49:02,951 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:49:02,951 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 11 treesize of output 11 [2022-11-19 07:49:02,960 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 [2022-11-19 07:49:02,978 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:49:02,979 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-19 07:49:03,004 INFO L321 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-11-19 07:49:03,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 [2022-11-19 07:49:03,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:03,022 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 39 treesize of output 30 [2022-11-19 07:49:03,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:03,239 INFO L321 Elim1Store]: treesize reduction 10, result has 68.8 percent of original size [2022-11-19 07:49:03,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 41 [2022-11-19 07:49:03,328 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 07:49:03,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 18 [2022-11-19 07:49:03,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-11-19 07:49:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:49:03,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:49:03,988 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:49:03,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 229 treesize of output 293 [2022-11-19 07:49:05,036 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~y~0#1.offset| 8))) (and (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (let ((.cse1 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))) (= .cse1 v_prenex_5)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (or (not (<= v_prenex_7 |c_ULTIMATE.start_main_~y~0#1.offset|)) (not (<= 0 v_prenex_7)) (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7) |c_ULTIMATE.start_main_~list~0#1.base|))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int)) (or (forall ((v_prenex_6 (Array Int Int))) (let ((.cse2 (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5))) (let ((.cse3 (select .cse2 v_prenex_7))) (or (not (= (select .cse2 8) .cse3)) (= .cse3 v_prenex_5))))) (not (<= v_prenex_7 |c_ULTIMATE.start_main_~y~0#1.offset|)) (not (<= 0 v_prenex_7)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (or (forall ((v_prenex_7 Int) (v_prenex_5 Int) (v_prenex_6 (Array Int Int))) (or (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7) |c_ULTIMATE.start_main_~list~0#1.base|) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|))))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_prenex_7 Int) (v_ArrVal_944 (Array Int Int)) (v_prenex_5 Int) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int) (v_prenex_6 (Array Int Int))) (let ((.cse4 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7))) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_18| v_prenex_5) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (= .cse4 v_prenex_5) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|))))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_prenex_7 Int) (v_ArrVal_944 (Array Int Int)) (v_prenex_5 Int) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int) (v_prenex_6 (Array Int Int))) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_18| v_prenex_5) (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7) |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))) (forall ((v_prenex_5 Int)) (or (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_18| v_prenex_5) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5) (forall ((v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7) |c_ULTIMATE.start_main_~list~0#1.base|)))) (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (let ((.cse5 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (= .cse5 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))) (= .cse5 |c_ULTIMATE.start_main_~list~0#1.base|)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((v_prenex_5 Int)) (or (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int) (v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (or (= |v_ULTIMATE.start_main_#t~malloc8#1.base_18| v_prenex_5) (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7) |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (forall ((v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int) (v_prenex_6 (Array Int Int))) (let ((.cse6 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_18| Int)) (or (= |v_ULTIMATE.start_main_#t~malloc8#1.base_18| v_prenex_5) (= .cse6 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) (forall ((v_ArrVal_944 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_77| Int)) (or (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_944) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 |v_ULTIMATE.start_main_#t~malloc8#1.base_18|) |v_ULTIMATE.start_main_~list~0#1.offset_77|))) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_77|)) (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_77| |c_ULTIMATE.start_main_~y~0#1.offset|)))))) (= .cse6 |c_ULTIMATE.start_main_~list~0#1.base|)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))) (forall ((v_prenex_5 Int)) (or (forall ((v_prenex_7 Int)) (or (forall ((v_prenex_6 (Array Int Int))) (let ((.cse7 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) |c_ULTIMATE.start_main_~y~0#1.base|) .cse0 v_prenex_5) v_prenex_7))) (or (= .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) (= .cse7 v_prenex_5)))) (not (<= v_prenex_7 |c_ULTIMATE.start_main_~y~0#1.offset|)) (not (<= 0 v_prenex_7)))) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_5))))) is different from false [2022-11-19 07:49:05,209 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:49:05,209 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 55 [2022-11-19 07:49:05,214 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 105 treesize of output 97 [2022-11-19 07:49:05,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:05,224 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 27 treesize of output 25 [2022-11-19 07:49:05,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:05,249 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:49:05,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 93 [2022-11-19 07:49:05,266 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 49 treesize of output 45 [2022-11-19 07:49:05,401 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:05,401 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 1 [2022-11-19 07:49:05,407 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:05,408 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 1 [2022-11-19 07:49:05,417 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:05,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 1 [2022-11-19 07:49:05,425 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:05,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2022-11-19 07:49:05,432 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:05,432 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2022-11-19 07:49:05,440 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:05,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 1 [2022-11-19 07:49:05,459 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:05,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2022-11-19 07:49:05,468 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:05,468 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 1 [2022-11-19 07:49:05,477 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:05,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 1 [2022-11-19 07:49:05,499 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:05,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 1 [2022-11-19 07:49:05,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:49:05,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161798983] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:49:05,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [465249875] [2022-11-19 07:49:05,573 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-19 07:49:05,573 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:49:05,573 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:49:05,574 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:49:05,574 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:49:05,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:49:05,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,612 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 30 treesize of output 21 [2022-11-19 07:49:05,622 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 [2022-11-19 07:49:05,629 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 [2022-11-19 07:49:05,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:49:05,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:49:05,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,662 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 34 treesize of output 21 [2022-11-19 07:49:05,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-19 07:49:05,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:49:05,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,701 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 34 treesize of output 21 [2022-11-19 07:49:05,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 07:49:05,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,759 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 [2022-11-19 07:49:05,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,769 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 [2022-11-19 07:49:05,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,782 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 30 treesize of output 21 [2022-11-19 07:49:05,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:05,808 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 42 treesize of output 43 [2022-11-19 07:49:05,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:05,824 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 42 treesize of output 43 [2022-11-19 07:49:05,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,837 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 34 treesize of output 21 [2022-11-19 07:49:05,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2022-11-19 07:49:05,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-19 07:49:05,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-19 07:49:05,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,945 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 34 treesize of output 21 [2022-11-19 07:49:05,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:05,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-11-19 07:49:06,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,041 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 30 treesize of output 21 [2022-11-19 07:49:06,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:06,081 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-19 07:49:06,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 270 treesize of output 180 [2022-11-19 07:49:06,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 72 [2022-11-19 07:49:06,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:06,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:06,177 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-19 07:49:06,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 279 treesize of output 192 [2022-11-19 07:49:06,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 84 [2022-11-19 07:49:06,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,234 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 34 treesize of output 21 [2022-11-19 07:49:06,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 74 [2022-11-19 07:49:06,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:06,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:06,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:06,407 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-19 07:49:06,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 345 treesize of output 241 [2022-11-19 07:49:06,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 96 [2022-11-19 07:49:06,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:06,476 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 34 treesize of output 21 [2022-11-19 07:49:06,987 INFO L321 Elim1Store]: treesize reduction 492, result has 11.2 percent of original size [2022-11-19 07:49:06,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 966 treesize of output 962 [2022-11-19 07:49:07,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:07,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:07,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:07,176 INFO L321 Elim1Store]: treesize reduction 104, result has 17.5 percent of original size [2022-11-19 07:49:07,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 31 case distinctions, treesize of input 1107 treesize of output 639 [2022-11-19 07:49:07,243 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 07:49:07,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1111 treesize of output 1094 [2022-11-19 07:49:07,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:07,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:07,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:07,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:07,361 INFO L321 Elim1Store]: treesize reduction 200, result has 14.5 percent of original size [2022-11-19 07:49:07,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 1107 treesize of output 1093 [2022-11-19 07:49:07,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:07,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:07,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:07,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:07,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:07,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:07,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:07,533 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-19 07:49:07,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 1116 treesize of output 651 [2022-11-19 07:49:07,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:07,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:07,571 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 1115 treesize of output 1094 [2022-11-19 07:49:07,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:07,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:07,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:07,741 INFO L321 Elim1Store]: treesize reduction 220, result has 10.9 percent of original size [2022-11-19 07:49:07,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 1116 treesize of output 1105 [2022-11-19 07:49:07,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:07,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,373 INFO L321 Elim1Store]: treesize reduction 560, result has 9.2 percent of original size [2022-11-19 07:49:08,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 1121 treesize of output 1116 [2022-11-19 07:49:08,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:08,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:08,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:08,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:08,633 INFO L321 Elim1Store]: treesize reduction 146, result has 14.1 percent of original size [2022-11-19 07:49:08,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 8 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 1283 treesize of output 749 [2022-11-19 07:49:08,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:08,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:08,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:08,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:08,798 INFO L321 Elim1Store]: treesize reduction 266, result has 11.9 percent of original size [2022-11-19 07:49:08,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 1307 treesize of output 1299 [2022-11-19 07:49:08,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1297 treesize of output 1276 [2022-11-19 07:49:08,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:49:08,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:49:08,953 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 [2022-11-19 07:49:08,958 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 [2022-11-19 07:49:08,963 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 15 treesize of output 1 [2022-11-19 07:49:08,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:49:08,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:08,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:49:08,996 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 19 treesize of output 1 [2022-11-19 07:49:09,036 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-19 07:49:09,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-11-19 07:49:09,060 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:09,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 29 [2022-11-19 07:49:09,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:09,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:09,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:09,085 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:49:09,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:49:09,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:09,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:09,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:09,102 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:49:09,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 07:49:09,112 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 19 treesize of output 1 [2022-11-19 07:49:09,269 INFO L321 Elim1Store]: treesize reduction 31, result has 32.6 percent of original size [2022-11-19 07:49:09,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 43 [2022-11-19 07:49:09,337 INFO L321 Elim1Store]: treesize reduction 36, result has 37.9 percent of original size [2022-11-19 07:49:09,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 23 treesize of output 33 [2022-11-19 07:49:09,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-19 07:49:09,452 INFO L321 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2022-11-19 07:49:09,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-19 07:49:09,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-19 07:49:09,567 INFO L321 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2022-11-19 07:49:09,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-19 07:49:09,696 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-19 07:49:09,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 203 [2022-11-19 07:49:09,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:49:09,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:49:09,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-19 07:49:09,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:09,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:49:09,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:09,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:49:10,034 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:49:10,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 388 treesize of output 385 [2022-11-19 07:49:10,070 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:49:10,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 380 treesize of output 377 [2022-11-19 07:49:10,102 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-19 07:49:10,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 376 treesize of output 363 [2022-11-19 07:49:10,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:10,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:10,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:10,508 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:10,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 924 treesize of output 885 [2022-11-19 07:49:10,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:10,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:10,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:10,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:10,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:10,553 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 07:49:10,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 904 treesize of output 869 [2022-11-19 07:49:10,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:10,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:10,600 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 883 treesize of output 838 [2022-11-19 07:49:10,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:10,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:10,859 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-19 07:49:10,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 859 treesize of output 808 [2022-11-19 07:49:11,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:11,314 INFO L321 Elim1Store]: treesize reduction 26, result has 27.8 percent of original size [2022-11-19 07:49:11,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 29 [2022-11-19 07:49:11,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:11,350 INFO L321 Elim1Store]: treesize reduction 26, result has 27.8 percent of original size [2022-11-19 07:49:11,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 29 [2022-11-19 07:49:11,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:11,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-19 07:49:11,428 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:49:11,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-19 07:49:11,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:11,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-19 07:49:11,512 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:49:11,522 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:49:11,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:11,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-19 07:49:11,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:11,614 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:49:11,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:49:11,640 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:49:11,651 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:49:11,719 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:49:14,453 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3819#(and (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:49:14,453 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:49:14,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:49:14,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 32 [2022-11-19 07:49:14,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123957325] [2022-11-19 07:49:14,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:49:14,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-19 07:49:14,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:49:14,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-19 07:49:14,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=2637, Unknown=1, NotChecked=106, Total=3080 [2022-11-19 07:49:14,457 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 34 states, 33 states have (on average 1.9393939393939394) internal successors, (64), 33 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:49:19,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:49:19,201 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2022-11-19 07:49:19,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-19 07:49:19,202 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.9393939393939394) internal successors, (64), 33 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-19 07:49:19,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:49:19,203 INFO L225 Difference]: With dead ends: 77 [2022-11-19 07:49:19,203 INFO L226 Difference]: Without dead ends: 77 [2022-11-19 07:49:19,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1681 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=530, Invalid=3763, Unknown=1, NotChecked=128, Total=4422 [2022-11-19 07:49:19,205 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 82 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 217 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:49:19,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 180 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 317 Invalid, 0 Unknown, 217 Unchecked, 0.3s Time] [2022-11-19 07:49:19,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-19 07:49:19,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 69. [2022-11-19 07:49:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 68 states have internal predecessors, (79), 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) [2022-11-19 07:49:19,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-11-19 07:49:19,208 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 26 [2022-11-19 07:49:19,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:49:19,209 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-19 07:49:19,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.9393939393939394) internal successors, (64), 33 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:49:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2022-11-19 07:49:19,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 07:49:19,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:49:19,210 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:49:19,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:49:19,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:49:19,415 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-19 07:49:19,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:49:19,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1221816285, now seen corresponding path program 1 times [2022-11-19 07:49:19,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:49:19,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680353421] [2022-11-19 07:49:19,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:19,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:49:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:20,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:49:20,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:49:20,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680353421] [2022-11-19 07:49:20,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680353421] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:49:20,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077914910] [2022-11-19 07:49:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:20,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:49:20,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:49:20,333 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:49:20,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd93880-2689-45a0-996d-5ce6ae9892b6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 07:49:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:20,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-19 07:49:20,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:49:20,486 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:49:20,502 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 [2022-11-19 07:49:20,509 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 [2022-11-19 07:49:20,534 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:49:20,534 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 11 treesize of output 11 [2022-11-19 07:49:20,583 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 [2022-11-19 07:49:20,592 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 [2022-11-19 07:49:20,652 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:49:20,653 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 50 [2022-11-19 07:49:20,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2022-11-19 07:49:20,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:20,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:20,750 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 07:49:20,750 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 48 [2022-11-19 07:49:20,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:20,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2022-11-19 07:49:21,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:21,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:21,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:21,340 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-19 07:49:21,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 34 [2022-11-19 07:49:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:49:21,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:49:45,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:45,334 INFO L321 Elim1Store]: treesize reduction 22, result has 62.1 percent of original size [2022-11-19 07:49:45,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 722 treesize of output 625 [2022-11-19 07:49:45,609 INFO L321 Elim1Store]: treesize reduction 239, result has 21.4 percent of original size [2022-11-19 07:49:45,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 489520 treesize of output 108971 [2022-11-19 07:49:48,295 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:49:48,297 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 97782 treesize of output 90616 [2022-11-19 07:49:48,791 INFO L321 Elim1Store]: treesize reduction 17, result has 51.4 percent of original size [2022-11-19 07:49:48,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90644 treesize of output 81718 [2022-11-19 07:49:49,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:49,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:49,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:49:49,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:49:49,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70918 treesize of output 63746 [2022-11-19 07:49:49,865 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 13 treesize of output 4