./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe8c4b1a27642c802f8c97577aadb7892fddcd015ae43c580aa1247dba190651 --- 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-e04fb08 [2022-11-16 16:03:10,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:03:10,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:03:10,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:03:10,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:03:10,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:03:10,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:03:10,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:03:10,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:03:11,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:03:11,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:03:11,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:03:11,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:03:11,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:03:11,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:03:11,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:03:11,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:03:11,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:03:11,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:03:11,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:03:11,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:03:11,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:03:11,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:03:11,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:03:11,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:03:11,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:03:11,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:03:11,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:03:11,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:03:11,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:03:11,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:03:11,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:03:11,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:03:11,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:03:11,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:03:11,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:03:11,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:03:11,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:03:11,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:03:11,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:03:11,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:03:11,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 16:03:11,128 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:03:11,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:03:11,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:03:11,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:03:11,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:03:11,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:03:11,132 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:03:11,132 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:03:11,133 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:03:11,133 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:03:11,134 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:03:11,135 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:03:11,135 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:03:11,135 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:03:11,135 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:03:11,136 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:03:11,136 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:03:11,136 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:03:11,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:03:11,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:03:11,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:03:11,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:03:11,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:03:11,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:03:11,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:03:11,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:03:11,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:03:11,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:03:11,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:03:11,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:03:11,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:03:11,143 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:03:11,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:03:11,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:03:11,144 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:03:11,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:03:11,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:03:11,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:03:11,146 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_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe8c4b1a27642c802f8c97577aadb7892fddcd015ae43c580aa1247dba190651 [2022-11-16 16:03:11,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:03:11,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:03:11,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:03:11,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:03:11,565 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:03:11,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2022-11-16 16:03:11,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/data/7fb4ef3eb/9ec568a2bf8947f881c104439ef93ad9/FLAG1dfe6f46d [2022-11-16 16:03:12,680 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:03:12,681 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2022-11-16 16:03:12,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/data/7fb4ef3eb/9ec568a2bf8947f881c104439ef93ad9/FLAG1dfe6f46d [2022-11-16 16:03:13,129 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/data/7fb4ef3eb/9ec568a2bf8947f881c104439ef93ad9 [2022-11-16 16:03:13,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:03:13,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:03:13,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:03:13,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:03:13,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:03:13,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:03:13" (1/1) ... [2022-11-16 16:03:13,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba485bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:13, skipping insertion in model container [2022-11-16 16:03:13,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:03:13" (1/1) ... [2022-11-16 16:03:13,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:03:13,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:03:14,331 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2022-11-16 16:03:14,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:03:14,409 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:03:14,627 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2022-11-16 16:03:14,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:03:14,666 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:03:14,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14 WrapperNode [2022-11-16 16:03:14,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:03:14,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:03:14,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:03:14,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:03:14,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,803 INFO L138 Inliner]: procedures = 95, calls = 374, calls flagged for inlining = 31, calls inlined = 28, statements flattened = 1159 [2022-11-16 16:03:14,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:03:14,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:03:14,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:03:14,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:03:14,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:03:14,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:03:14,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:03:14,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:03:14,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (1/1) ... [2022-11-16 16:03:14,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:03:14,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:03:15,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:03:15,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:03:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:03:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inw [2022-11-16 16:03:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inw [2022-11-16 16:03:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outw [2022-11-16 16:03:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outw [2022-11-16 16:03:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_stop [2022-11-16 16:03:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_stop [2022-11-16 16:03:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 16:03:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 16:03:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:03:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_write [2022-11-16 16:03:15,065 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_write [2022-11-16 16:03:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_update_timeout [2022-11-16 16:03:15,065 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_update_timeout [2022-11-16 16:03:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 16:03:15,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 16:03:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:03:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 16:03:15,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 16:03:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 16:03:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_round_time [2022-11-16 16:03:15,067 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_round_time [2022-11-16 16:03:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2022-11-16 16:03:15,067 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2022-11-16 16:03:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 16:03:15,068 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 16:03:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:03:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2022-11-16 16:03:15,068 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2022-11-16 16:03:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 16:03:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-16 16:03:15,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-16 16:03:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:03:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-16 16:03:15,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-16 16:03:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 16:03:15,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 16:03:15,070 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_start [2022-11-16 16:03:15,070 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_start [2022-11-16 16:03:15,071 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2022-11-16 16:03:15,071 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2022-11-16 16:03:15,071 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-16 16:03:15,071 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-16 16:03:15,071 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 16:03:15,072 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 16:03:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-16 16:03:15,072 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-16 16:03:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 16:03:15,072 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 16:03:15,073 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2022-11-16 16:03:15,073 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2022-11-16 16:03:15,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 16:03:15,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 16:03:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 16:03:15,074 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 16:03:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:03:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_keepalive [2022-11-16 16:03:15,074 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_keepalive [2022-11-16 16:03:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-16 16:03:15,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-16 16:03:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2022-11-16 16:03:15,075 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2022-11-16 16:03:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2022-11-16 16:03:15,076 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2022-11-16 16:03:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 16:03:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-16 16:03:15,076 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-16 16:03:15,077 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-16 16:03:15,077 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-16 16:03:15,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:03:15,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:03:15,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 16:03:15,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 16:03:15,487 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:03:15,499 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:03:15,772 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 16:03:17,755 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:03:18,149 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:03:18,149 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 16:03:18,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:03:18 BoogieIcfgContainer [2022-11-16 16:03:18,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:03:18,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:03:18,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:03:18,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:03:18,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:03:13" (1/3) ... [2022-11-16 16:03:18,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f5ffd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:03:18, skipping insertion in model container [2022-11-16 16:03:18,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:14" (2/3) ... [2022-11-16 16:03:18,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f5ffd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:03:18, skipping insertion in model container [2022-11-16 16:03:18,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:03:18" (3/3) ... [2022-11-16 16:03:18,169 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2022-11-16 16:03:18,192 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:03:18,193 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:03:18,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:03:18,279 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5c681fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:03:18,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:03:18,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 476 states, 264 states have (on average 1.4090909090909092) internal successors, (372), 296 states have internal predecessors, (372), 181 states have call successors, (181), 30 states have call predecessors, (181), 29 states have return successors, (177), 172 states have call predecessors, (177), 177 states have call successors, (177) [2022-11-16 16:03:18,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-16 16:03:18,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:18,313 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:18,313 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:18,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:18,320 INFO L85 PathProgramCache]: Analyzing trace with hash 245495152, now seen corresponding path program 1 times [2022-11-16 16:03:18,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:18,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557790970] [2022-11-16 16:03:18,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:18,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-16 16:03:19,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:19,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557790970] [2022-11-16 16:03:19,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557790970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:19,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:03:19,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:03:19,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325567765] [2022-11-16 16:03:19,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:19,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:03:19,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:19,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:03:19,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:03:19,467 INFO L87 Difference]: Start difference. First operand has 476 states, 264 states have (on average 1.4090909090909092) internal successors, (372), 296 states have internal predecessors, (372), 181 states have call successors, (181), 30 states have call predecessors, (181), 29 states have return successors, (177), 172 states have call predecessors, (177), 177 states have call successors, (177) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:03:20,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:20,185 INFO L93 Difference]: Finished difference Result 927 states and 1426 transitions. [2022-11-16 16:03:20,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:03:20,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2022-11-16 16:03:20,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:20,213 INFO L225 Difference]: With dead ends: 927 [2022-11-16 16:03:20,213 INFO L226 Difference]: Without dead ends: 875 [2022-11-16 16:03:20,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:03:20,223 INFO L413 NwaCegarLoop]: 984 mSDtfsCounter, 690 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:20,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1633 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 16:03:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2022-11-16 16:03:20,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 874. [2022-11-16 16:03:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 493 states have (on average 1.3955375253549696) internal successors, (688), 540 states have internal predecessors, (688), 325 states have call successors, (325), 56 states have call predecessors, (325), 55 states have return successors, (324), 315 states have call predecessors, (324), 324 states have call successors, (324) [2022-11-16 16:03:20,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1337 transitions. [2022-11-16 16:03:20,430 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1337 transitions. Word has length 105 [2022-11-16 16:03:20,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:20,432 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1337 transitions. [2022-11-16 16:03:20,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:03:20,433 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1337 transitions. [2022-11-16 16:03:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-16 16:03:20,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:20,482 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:20,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:03:20,483 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:20,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:20,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1511708349, now seen corresponding path program 1 times [2022-11-16 16:03:20,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:20,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181251272] [2022-11-16 16:03:20,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:20,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:20,874 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-16 16:03:20,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:20,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181251272] [2022-11-16 16:03:20,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181251272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:20,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:03:20,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:03:20,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366598373] [2022-11-16 16:03:20,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:20,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:03:20,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:20,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:03:20,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:03:20,881 INFO L87 Difference]: Start difference. First operand 874 states and 1337 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 16:03:21,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:21,539 INFO L93 Difference]: Finished difference Result 2116 states and 3223 transitions. [2022-11-16 16:03:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:03:21,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2022-11-16 16:03:21,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:21,555 INFO L225 Difference]: With dead ends: 2116 [2022-11-16 16:03:21,555 INFO L226 Difference]: Without dead ends: 1266 [2022-11-16 16:03:21,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:03:21,566 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 361 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:21,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1362 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 16:03:21,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-11-16 16:03:21,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1260. [2022-11-16 16:03:21,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 697 states have (on average 1.3916786226685796) internal successors, (970), 764 states have internal predecessors, (970), 472 states have call successors, (472), 91 states have call predecessors, (472), 90 states have return successors, (471), 458 states have call predecessors, (471), 471 states have call successors, (471) [2022-11-16 16:03:21,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1913 transitions. [2022-11-16 16:03:21,739 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1913 transitions. Word has length 147 [2022-11-16 16:03:21,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:21,740 INFO L495 AbstractCegarLoop]: Abstraction has 1260 states and 1913 transitions. [2022-11-16 16:03:21,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 16:03:21,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1913 transitions. [2022-11-16 16:03:21,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-11-16 16:03:21,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:21,750 INFO L195 NwaCegarLoop]: trace histogram [13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:21,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:03:21,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:21,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:21,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1898607792, now seen corresponding path program 1 times [2022-11-16 16:03:21,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:21,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185306897] [2022-11-16 16:03:21,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:21,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:22,855 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-11-16 16:03:22,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:22,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185306897] [2022-11-16 16:03:22,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185306897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:22,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:03:22,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:03:22,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293510988] [2022-11-16 16:03:22,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:22,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:03:22,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:22,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:03:22,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:03:22,864 INFO L87 Difference]: Start difference. First operand 1260 states and 1913 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2022-11-16 16:03:25,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:25,345 INFO L93 Difference]: Finished difference Result 3174 states and 4941 transitions. [2022-11-16 16:03:25,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:03:25,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) Word has length 305 [2022-11-16 16:03:25,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:25,370 INFO L225 Difference]: With dead ends: 3174 [2022-11-16 16:03:25,371 INFO L226 Difference]: Without dead ends: 1946 [2022-11-16 16:03:25,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:03:25,385 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 1082 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:25,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1227 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 16:03:25,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2022-11-16 16:03:25,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1486. [2022-11-16 16:03:25,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 805 states have (on average 1.396273291925466) internal successors, (1124), 896 states have internal predecessors, (1124), 590 states have call successors, (590), 91 states have call predecessors, (590), 90 states have return successors, (589), 572 states have call predecessors, (589), 589 states have call successors, (589) [2022-11-16 16:03:25,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2303 transitions. [2022-11-16 16:03:25,609 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2303 transitions. Word has length 305 [2022-11-16 16:03:25,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:25,611 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 2303 transitions. [2022-11-16 16:03:25,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2022-11-16 16:03:25,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2303 transitions. [2022-11-16 16:03:25,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-11-16 16:03:25,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:25,624 INFO L195 NwaCegarLoop]: trace histogram [13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:25,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:03:25,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:25,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:25,625 INFO L85 PathProgramCache]: Analyzing trace with hash -166615994, now seen corresponding path program 1 times [2022-11-16 16:03:25,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:25,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868617681] [2022-11-16 16:03:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:25,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:26,106 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-11-16 16:03:26,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:26,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868617681] [2022-11-16 16:03:26,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868617681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:26,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:03:26,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:03:26,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31722490] [2022-11-16 16:03:26,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:26,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:03:26,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:26,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:03:26,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:03:26,120 INFO L87 Difference]: Start difference. First operand 1486 states and 2303 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-16 16:03:26,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:26,726 INFO L93 Difference]: Finished difference Result 2940 states and 4564 transitions. [2022-11-16 16:03:26,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:03:26,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 308 [2022-11-16 16:03:26,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:26,738 INFO L225 Difference]: With dead ends: 2940 [2022-11-16 16:03:26,738 INFO L226 Difference]: Without dead ends: 1486 [2022-11-16 16:03:26,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:03:26,746 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 668 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:26,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 670 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 16:03:26,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2022-11-16 16:03:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1486. [2022-11-16 16:03:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 805 states have (on average 1.3863354037267082) internal successors, (1116), 896 states have internal predecessors, (1116), 590 states have call successors, (590), 91 states have call predecessors, (590), 90 states have return successors, (589), 572 states have call predecessors, (589), 589 states have call successors, (589) [2022-11-16 16:03:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2295 transitions. [2022-11-16 16:03:26,905 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2295 transitions. Word has length 308 [2022-11-16 16:03:26,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:26,906 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 2295 transitions. [2022-11-16 16:03:26,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-16 16:03:26,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2295 transitions. [2022-11-16 16:03:26,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-16 16:03:26,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:26,917 INFO L195 NwaCegarLoop]: trace histogram [13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:26,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:03:26,918 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:26,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:26,918 INFO L85 PathProgramCache]: Analyzing trace with hash 500254615, now seen corresponding path program 1 times [2022-11-16 16:03:26,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:26,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879907173] [2022-11-16 16:03:26,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:26,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:27,589 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-11-16 16:03:27,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:27,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879907173] [2022-11-16 16:03:27,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879907173] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:03:27,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709909428] [2022-11-16 16:03:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:27,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:03:27,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:03:27,598 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:03:27,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:03:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:28,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 2220 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:03:28,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:03:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-11-16 16:03:29,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:03:29,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709909428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:29,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 16:03:29,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-16 16:03:29,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660214472] [2022-11-16 16:03:29,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:29,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:03:29,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:29,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:03:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:03:29,132 INFO L87 Difference]: Start difference. First operand 1486 states and 2295 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-16 16:03:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:29,789 INFO L93 Difference]: Finished difference Result 2940 states and 4548 transitions. [2022-11-16 16:03:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:03:29,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 313 [2022-11-16 16:03:29,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:29,830 INFO L225 Difference]: With dead ends: 2940 [2022-11-16 16:03:29,830 INFO L226 Difference]: Without dead ends: 1486 [2022-11-16 16:03:29,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:03:29,839 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 555 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:29,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 669 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 16:03:29,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2022-11-16 16:03:29,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1486. [2022-11-16 16:03:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 805 states have (on average 1.3838509316770187) internal successors, (1114), 896 states have internal predecessors, (1114), 590 states have call successors, (590), 91 states have call predecessors, (590), 90 states have return successors, (589), 572 states have call predecessors, (589), 589 states have call successors, (589) [2022-11-16 16:03:30,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2293 transitions. [2022-11-16 16:03:30,005 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2293 transitions. Word has length 313 [2022-11-16 16:03:30,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:30,011 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 2293 transitions. [2022-11-16 16:03:30,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-16 16:03:30,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2293 transitions. [2022-11-16 16:03:30,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-16 16:03:30,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:30,024 INFO L195 NwaCegarLoop]: trace histogram [13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:30,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 16:03:30,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:03:30,234 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:30,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:30,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1302159825, now seen corresponding path program 1 times [2022-11-16 16:03:30,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:30,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844303799] [2022-11-16 16:03:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:30,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:31,216 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-11-16 16:03:31,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:31,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844303799] [2022-11-16 16:03:31,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844303799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:31,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:03:31,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:03:31,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747058631] [2022-11-16 16:03:31,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:31,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:03:31,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:31,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:03:31,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:03:31,221 INFO L87 Difference]: Start difference. First operand 1486 states and 2293 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-16 16:03:32,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:32,981 INFO L93 Difference]: Finished difference Result 3724 states and 5701 transitions. [2022-11-16 16:03:32,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:03:32,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 318 [2022-11-16 16:03:32,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:32,997 INFO L225 Difference]: With dead ends: 3724 [2022-11-16 16:03:32,997 INFO L226 Difference]: Without dead ends: 2195 [2022-11-16 16:03:33,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:03:33,005 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 610 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:33,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 2518 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 16:03:33,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2022-11-16 16:03:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2140. [2022-11-16 16:03:33,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 1202 states have (on average 1.3810316139767056) internal successors, (1660), 1319 states have internal predecessors, (1660), 793 states have call successors, (793), 145 states have call predecessors, (793), 144 states have return successors, (792), 770 states have call predecessors, (792), 792 states have call successors, (792) [2022-11-16 16:03:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 3245 transitions. [2022-11-16 16:03:33,263 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 3245 transitions. Word has length 318 [2022-11-16 16:03:33,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:33,264 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 3245 transitions. [2022-11-16 16:03:33,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-16 16:03:33,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 3245 transitions. [2022-11-16 16:03:33,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-16 16:03:33,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:33,279 INFO L195 NwaCegarLoop]: trace histogram [13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:33,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 16:03:33,280 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:33,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1862873364, now seen corresponding path program 1 times [2022-11-16 16:03:33,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:33,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289794782] [2022-11-16 16:03:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:33,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2022-11-16 16:03:33,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:33,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289794782] [2022-11-16 16:03:33,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289794782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:33,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:03:33,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:03:33,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372646870] [2022-11-16 16:03:33,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:33,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:03:33,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:33,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:03:33,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:03:33,899 INFO L87 Difference]: Start difference. First operand 2140 states and 3245 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-16 16:03:35,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:35,449 INFO L93 Difference]: Finished difference Result 3893 states and 5826 transitions. [2022-11-16 16:03:35,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:03:35,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 325 [2022-11-16 16:03:35,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:35,462 INFO L225 Difference]: With dead ends: 3893 [2022-11-16 16:03:35,462 INFO L226 Difference]: Without dead ends: 1682 [2022-11-16 16:03:35,472 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 [2022-11-16 16:03:35,473 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 477 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:35,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1382 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 16:03:35,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2022-11-16 16:03:35,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1682. [2022-11-16 16:03:35,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 976 states have (on average 1.353483606557377) internal successors, (1321), 1053 states have internal predecessors, (1321), 568 states have call successors, (568), 138 states have call predecessors, (568), 137 states have return successors, (567), 551 states have call predecessors, (567), 567 states have call successors, (567) [2022-11-16 16:03:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2456 transitions. [2022-11-16 16:03:35,657 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2456 transitions. Word has length 325 [2022-11-16 16:03:35,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:35,659 INFO L495 AbstractCegarLoop]: Abstraction has 1682 states and 2456 transitions. [2022-11-16 16:03:35,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-16 16:03:35,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2456 transitions. [2022-11-16 16:03:35,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-16 16:03:35,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:35,674 INFO L195 NwaCegarLoop]: trace histogram [13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:35,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 16:03:35,675 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:35,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:35,676 INFO L85 PathProgramCache]: Analyzing trace with hash 112539899, now seen corresponding path program 1 times [2022-11-16 16:03:35,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:35,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185998983] [2022-11-16 16:03:35,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:35,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2022-11-16 16:03:36,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:36,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185998983] [2022-11-16 16:03:36,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185998983] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:03:36,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134901559] [2022-11-16 16:03:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:36,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:03:36,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:03:36,927 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:03:36,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:03:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:37,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 2305 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:03:37,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:03:37,823 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2022-11-16 16:03:37,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:03:37,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134901559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:37,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 16:03:37,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-16 16:03:37,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983000905] [2022-11-16 16:03:37,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:37,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:03:37,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:37,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:03:37,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:03:37,826 INFO L87 Difference]: Start difference. First operand 1682 states and 2456 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-16 16:03:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:39,341 INFO L93 Difference]: Finished difference Result 3308 states and 4846 transitions. [2022-11-16 16:03:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:03:39,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) Word has length 329 [2022-11-16 16:03:39,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:39,359 INFO L225 Difference]: With dead ends: 3308 [2022-11-16 16:03:39,359 INFO L226 Difference]: Without dead ends: 1696 [2022-11-16 16:03:39,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:03:39,373 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 0 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:39,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2630 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 16:03:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2022-11-16 16:03:39,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1684. [2022-11-16 16:03:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 977 states have (on average 1.353121801432958) internal successors, (1322), 1055 states have internal predecessors, (1322), 568 states have call successors, (568), 138 states have call predecessors, (568), 138 states have return successors, (570), 551 states have call predecessors, (570), 567 states have call successors, (570) [2022-11-16 16:03:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2460 transitions. [2022-11-16 16:03:39,631 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2460 transitions. Word has length 329 [2022-11-16 16:03:39,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:39,632 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 2460 transitions. [2022-11-16 16:03:39,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-16 16:03:39,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2460 transitions. [2022-11-16 16:03:39,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-11-16 16:03:39,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:39,649 INFO L195 NwaCegarLoop]: trace histogram [17, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:39,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 16:03:39,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 16:03:39,861 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:39,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:39,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1446935686, now seen corresponding path program 1 times [2022-11-16 16:03:39,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:39,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501571644] [2022-11-16 16:03:39,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:39,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-11-16 16:03:40,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:40,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501571644] [2022-11-16 16:03:40,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501571644] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:03:40,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938637466] [2022-11-16 16:03:40,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:40,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:03:40,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:03:40,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:03:41,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:03:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:41,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 2348 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:03:41,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:03:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-16 16:03:41,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:03:41,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938637466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:41,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 16:03:41,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-16 16:03:41,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298402133] [2022-11-16 16:03:41,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:41,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:03:41,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:41,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:03:41,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:03:41,923 INFO L87 Difference]: Start difference. First operand 1684 states and 2460 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-16 16:03:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:43,852 INFO L93 Difference]: Finished difference Result 3273 states and 4795 transitions. [2022-11-16 16:03:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:03:43,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) Word has length 342 [2022-11-16 16:03:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:43,866 INFO L225 Difference]: With dead ends: 3273 [2022-11-16 16:03:43,866 INFO L226 Difference]: Without dead ends: 1696 [2022-11-16 16:03:43,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:03:43,877 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 0 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:43,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2631 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 16:03:43,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2022-11-16 16:03:44,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1684. [2022-11-16 16:03:44,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 977 states have (on average 1.353121801432958) internal successors, (1322), 1055 states have internal predecessors, (1322), 568 states have call successors, (568), 138 states have call predecessors, (568), 138 states have return successors, (568), 551 states have call predecessors, (568), 567 states have call successors, (568) [2022-11-16 16:03:44,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2458 transitions. [2022-11-16 16:03:44,090 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2458 transitions. Word has length 342 [2022-11-16 16:03:44,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:44,091 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 2458 transitions. [2022-11-16 16:03:44,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-16 16:03:44,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2458 transitions. [2022-11-16 16:03:44,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-11-16 16:03:44,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:44,108 INFO L195 NwaCegarLoop]: trace histogram [21, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:44,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 16:03:44,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 16:03:44,319 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:44,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:44,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1164319803, now seen corresponding path program 2 times [2022-11-16 16:03:44,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:44,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209178544] [2022-11-16 16:03:44,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:44,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2022-11-16 16:03:45,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:45,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209178544] [2022-11-16 16:03:45,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209178544] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:03:45,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421744633] [2022-11-16 16:03:45,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 16:03:45,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:03:45,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:03:45,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:03:45,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:03:47,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 16:03:47,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:03:47,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 16:03:47,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:03:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2022-11-16 16:03:47,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:03:47,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421744633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:47,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 16:03:47,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2022-11-16 16:03:47,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715174379] [2022-11-16 16:03:47,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:47,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 16:03:47,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:47,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 16:03:47,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-16 16:03:47,901 INFO L87 Difference]: Start difference. First operand 1684 states and 2458 transitions. Second operand has 8 states, 8 states have (on average 15.875) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (53), 4 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-16 16:03:51,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:51,120 INFO L93 Difference]: Finished difference Result 3742 states and 5621 transitions. [2022-11-16 16:03:51,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:03:51,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (53), 4 states have call predecessors, (53), 2 states have call successors, (53) Word has length 355 [2022-11-16 16:03:51,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:51,138 INFO L225 Difference]: With dead ends: 3742 [2022-11-16 16:03:51,139 INFO L226 Difference]: Without dead ends: 2385 [2022-11-16 16:03:51,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 16:03:51,147 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 172 mSDsluCounter, 5125 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 6015 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:51,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 6015 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-16 16:03:51,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2022-11-16 16:03:51,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 1716. [2022-11-16 16:03:51,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1001 states have (on average 1.3446553446553446) internal successors, (1346), 1079 states have internal predecessors, (1346), 568 states have call successors, (568), 138 states have call predecessors, (568), 146 states have return successors, (597), 559 states have call predecessors, (597), 567 states have call successors, (597) [2022-11-16 16:03:51,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2511 transitions. [2022-11-16 16:03:51,360 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2511 transitions. Word has length 355 [2022-11-16 16:03:51,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:51,361 INFO L495 AbstractCegarLoop]: Abstraction has 1716 states and 2511 transitions. [2022-11-16 16:03:51,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (53), 4 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-16 16:03:51,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2511 transitions. [2022-11-16 16:03:51,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-11-16 16:03:51,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:51,382 INFO L195 NwaCegarLoop]: trace histogram [21, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:51,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:03:51,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 16:03:51,594 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:51,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:51,595 INFO L85 PathProgramCache]: Analyzing trace with hash -940932665, now seen corresponding path program 1 times [2022-11-16 16:03:51,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:51,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968828831] [2022-11-16 16:03:51,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:51,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:53,065 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-11-16 16:03:53,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:53,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968828831] [2022-11-16 16:03:53,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968828831] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:03:53,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623455888] [2022-11-16 16:03:53,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:53,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:03:53,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:03:53,067 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:03:53,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 16:03:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:54,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 2413 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 16:03:54,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:03:54,294 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2022-11-16 16:03:54,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:03:54,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623455888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:54,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 16:03:54,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-11-16 16:03:54,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511965397] [2022-11-16 16:03:54,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:54,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:03:54,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:54,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:03:54,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:03:54,298 INFO L87 Difference]: Start difference. First operand 1716 states and 2511 transitions. Second operand has 4 states, 3 states have (on average 40.333333333333336) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-16 16:03:55,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:55,995 INFO L93 Difference]: Finished difference Result 3416 states and 5007 transitions. [2022-11-16 16:03:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:03:55,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 40.333333333333336) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 364 [2022-11-16 16:03:55,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:56,008 INFO L225 Difference]: With dead ends: 3416 [2022-11-16 16:03:56,009 INFO L226 Difference]: Without dead ends: 1717 [2022-11-16 16:03:56,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:03:56,017 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 1 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1972 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:56,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1972 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 16:03:56,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2022-11-16 16:03:56,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1717. [2022-11-16 16:03:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1002 states have (on average 1.344311377245509) internal successors, (1347), 1080 states have internal predecessors, (1347), 568 states have call successors, (568), 138 states have call predecessors, (568), 146 states have return successors, (597), 559 states have call predecessors, (597), 567 states have call successors, (597) [2022-11-16 16:03:56,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2512 transitions. [2022-11-16 16:03:56,221 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2512 transitions. Word has length 364 [2022-11-16 16:03:56,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:56,222 INFO L495 AbstractCegarLoop]: Abstraction has 1717 states and 2512 transitions. [2022-11-16 16:03:56,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 40.333333333333336) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-16 16:03:56,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2512 transitions. [2022-11-16 16:03:56,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-11-16 16:03:56,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:56,237 INFO L195 NwaCegarLoop]: trace histogram [21, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:56,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 16:03:56,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-16 16:03:56,450 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:03:56,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:56,451 INFO L85 PathProgramCache]: Analyzing trace with hash 188520081, now seen corresponding path program 1 times [2022-11-16 16:03:56,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:56,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14364090] [2022-11-16 16:03:56,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:56,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2022-11-16 16:03:57,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:57,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14364090] [2022-11-16 16:03:57,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14364090] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:03:57,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432535114] [2022-11-16 16:03:57,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:57,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:03:57,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:03:57,853 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:03:57,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 16:03:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:59,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 16:03:59,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:03:59,268 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 110 proven. 1 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2022-11-16 16:03:59,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:03:59,796 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-16 16:03:59,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432535114] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:03:59,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2057969911] [2022-11-16 16:03:59,828 INFO L159 IcfgInterpreter]: Started Sifa with 187 locations of interest [2022-11-16 16:03:59,829 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:03:59,834 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:03:59,841 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:03:59,842 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:04:03,880 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 75 treesize of output 75 [2022-11-16 16:04:04,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:04,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:04,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:04,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:04,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:04,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:04,677 INFO L217 Elim1Store]: Index analysis took 596 ms [2022-11-16 16:04:20,143 WARN L233 SmtUtils]: Spent 15.42s on a formula simplification. DAG size of input: 1077 DAG size of output: 451 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 16:04:20,147 INFO L321 Elim1Store]: treesize reduction 4376, result has 15.6 percent of original size [2022-11-16 16:04:20,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 35 select indices, 35 select index equivalence classes, 418 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 214 case distinctions, treesize of input 257 treesize of output 989 [2022-11-16 16:04:21,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 62 [2022-11-16 16:04:21,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 16:04:21,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:21,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 28 select indices, 28 select index equivalence classes, 567 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 255 [2022-11-16 16:04:22,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:22,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:22,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-16 16:04:22,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 55 [2022-11-16 16:04:22,730 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 [2022-11-16 16:04:24,924 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 [2022-11-16 16:04:24,931 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 [2022-11-16 16:04:24,941 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 7 treesize of output 6 [2022-11-16 16:04:26,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 595 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 106 [2022-11-16 16:04:26,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 567 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-16 16:04:26,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 106 treesize of output 92 [2022-11-16 16:04:26,620 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 7 treesize of output 3 [2022-11-16 16:04:26,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:26,677 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 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-16 16:04:26,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:04:29,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:29,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:29,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:29,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:29,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:29,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:29,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 567 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-16 16:04:29,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 106 treesize of output 92 [2022-11-16 16:04:29,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:04:29,962 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 7 treesize of output 3 [2022-11-16 16:04:30,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:30,021 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 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-16 16:04:30,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:30,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:30,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:30,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:30,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:30,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:30,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 595 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 106 [2022-11-16 16:04:32,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:04:33,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:04:33,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:04:34,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:04:34,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:04:34,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:04:37,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:04:37,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:04:37,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:04:38,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:04:38,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:04:39,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:03,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:03,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:05:03,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:04,469 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:05:04,487 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:05:04,495 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:05:21,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:05:22,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:22,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:22,561 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:05:22,585 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:05:22,596 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:05:24,462 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 14 treesize of output 10 [2022-11-16 16:05:24,469 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 16 treesize of output 12 [2022-11-16 16:05:24,476 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 14 treesize of output 10 [2022-11-16 16:05:24,502 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 115 treesize of output 114 [2022-11-16 16:05:24,512 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 113 treesize of output 112 [2022-11-16 16:05:24,521 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 113 treesize of output 112 [2022-11-16 16:05:24,548 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 16 treesize of output 12 [2022-11-16 16:05:24,554 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 14 treesize of output 10 [2022-11-16 16:05:24,561 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 14 treesize of output 10 [2022-11-16 16:05:25,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 38 select indices, 38 select index equivalence classes, 410 disjoint index pairs (out of 703 index pairs), introduced 38 new quantified variables, introduced 0 case distinctions, treesize of input 339 treesize of output 115 [2022-11-16 16:05:25,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:05:25,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:25,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 38 select indices, 38 select index equivalence classes, 410 disjoint index pairs (out of 703 index pairs), introduced 38 new quantified variables, introduced 0 case distinctions, treesize of input 339 treesize of output 115 [2022-11-16 16:05:27,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:05:27,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 38 select indices, 38 select index equivalence classes, 410 disjoint index pairs (out of 703 index pairs), introduced 38 new quantified variables, introduced 0 case distinctions, treesize of input 339 treesize of output 115 [2022-11-16 16:05:27,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:05:27,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 38 select indices, 38 select index equivalence classes, 410 disjoint index pairs (out of 703 index pairs), introduced 38 new quantified variables, introduced 0 case distinctions, treesize of input 339 treesize of output 115 [2022-11-16 16:05:42,356 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 15 treesize of output 1 [2022-11-16 16:05:42,505 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 15 treesize of output 1 [2022-11-16 16:05:42,566 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 [2022-11-16 16:05:43,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:43,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:44,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:44,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:52,664 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 15 treesize of output 1 [2022-11-16 16:05:52,711 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 [2022-11-16 16:05:52,852 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 15 treesize of output 1 [2022-11-16 16:05:53,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:53,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:54,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:05:54,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:06:28,285 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 554 for LOIs [2022-11-16 16:06:29,813 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 14 treesize of output 10 [2022-11-16 16:06:30,117 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 16 treesize of output 12 [2022-11-16 16:06:30,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:06:30,921 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 14 treesize of output 10 [2022-11-16 16:06:30,942 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 16 treesize of output 12 [2022-11-16 16:06:30,959 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 14 treesize of output 10 [2022-11-16 16:06:30,994 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 1007 for LOIs [2022-11-16 16:06:33,316 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 [2022-11-16 16:06:33,553 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 [2022-11-16 16:06:36,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,509 INFO L217 Elim1Store]: Index analysis took 242 ms [2022-11-16 16:06:36,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:36,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 34 select indices, 34 select index equivalence classes, 603 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 1 [2022-11-16 16:06:40,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:40,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,160 INFO L217 Elim1Store]: Index analysis took 223 ms [2022-11-16 16:06:41,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:41,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 34 select indices, 34 select index equivalence classes, 603 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 1 [2022-11-16 16:06:46,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,608 INFO L217 Elim1Store]: Index analysis took 195 ms [2022-11-16 16:06:46,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:06:46,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 34 select indices, 34 select index equivalence classes, 603 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 1 [2022-11-16 16:06:46,782 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 177 for LOIs [2022-11-16 16:06:46,827 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 90 for LOIs [2022-11-16 16:06:46,852 INFO L197 IcfgInterpreter]: Interpreting procedure superio_enter with input of size 144 for LOIs [2022-11-16 16:06:47,361 INFO L197 IcfgInterpreter]: Interpreting procedure __request_region with input of size 164 for LOIs [2022-11-16 16:06:47,569 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:07:02,359 WARN L233 SmtUtils]: Spent 13.66s on a formula simplification. DAG size of input: 929 DAG size of output: 585 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:07:12,938 WARN L233 SmtUtils]: Spent 7.67s on a formula simplification. DAG size of input: 1023 DAG size of output: 99 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:07:32,264 WARN L233 SmtUtils]: Spent 13.26s on a formula simplification. DAG size of input: 759 DAG size of output: 739 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:07:45,858 WARN L233 SmtUtils]: Spent 13.09s on a formula simplification. DAG size of input: 763 DAG size of output: 743 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:08:00,218 WARN L233 SmtUtils]: Spent 13.81s on a formula simplification. DAG size of input: 778 DAG size of output: 754 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:08:14,812 WARN L233 SmtUtils]: Spent 14.01s on a formula simplification. DAG size of input: 781 DAG size of output: 757 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:08:39,096 WARN L233 SmtUtils]: Spent 23.49s on a formula simplification. DAG size of input: 894 DAG size of output: 813 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:09:00,183 WARN L233 SmtUtils]: Spent 20.28s on a formula simplification. DAG size of input: 898 DAG size of output: 777 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:09:14,156 WARN L233 SmtUtils]: Spent 13.24s on a formula simplification. DAG size of input: 814 DAG size of output: 783 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:09:28,233 WARN L233 SmtUtils]: Spent 13.42s on a formula simplification. DAG size of input: 818 DAG size of output: 787 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:09:40,193 WARN L233 SmtUtils]: Spent 8.16s on a formula simplification. DAG size of input: 579 DAG size of output: 546 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:09:48,995 WARN L233 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 579 DAG size of output: 546 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:09:57,992 WARN L233 SmtUtils]: Spent 8.29s on a formula simplification. DAG size of input: 592 DAG size of output: 559 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:10:22,315 WARN L233 SmtUtils]: Spent 23.45s on a formula simplification. DAG size of input: 685 DAG size of output: 564 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:10:30,773 WARN L233 SmtUtils]: Spent 7.78s on a formula simplification. DAG size of input: 582 DAG size of output: 549 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:10:55,790 WARN L233 SmtUtils]: Spent 24.13s on a formula simplification. DAG size of input: 688 DAG size of output: 576 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:11:19,947 WARN L233 SmtUtils]: Spent 23.21s on a formula simplification. DAG size of input: 690 DAG size of output: 565 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:11:28,373 WARN L233 SmtUtils]: Spent 7.68s on a formula simplification. DAG size of input: 585 DAG size of output: 552 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:11:37,014 WARN L233 SmtUtils]: Spent 7.92s on a formula simplification. DAG size of input: 596 DAG size of output: 563 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:11:51,888 WARN L233 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 595 DAG size of output: 560 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:12:01,045 WARN L233 SmtUtils]: Spent 8.40s on a formula simplification. DAG size of input: 593 DAG size of output: 558 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:12:10,412 WARN L233 SmtUtils]: Spent 8.49s on a formula simplification. DAG size of input: 596 DAG size of output: 563 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:12:20,231 WARN L233 SmtUtils]: Spent 8.86s on a formula simplification. DAG size of input: 582 DAG size of output: 549 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:12:29,922 WARN L233 SmtUtils]: Spent 8.67s on a formula simplification. DAG size of input: 585 DAG size of output: 552 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:12:29,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2057969911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:12:29,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:12:29,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [6, 5, 5] total 56 [2022-11-16 16:12:29,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398168281] [2022-11-16 16:12:29,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:12:29,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-16 16:12:29,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:12:29,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-16 16:12:29,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2902, Unknown=0, NotChecked=0, Total=3080 [2022-11-16 16:12:29,935 INFO L87 Difference]: Start difference. First operand 1717 states and 2512 transitions. Second operand has 46 states, 33 states have (on average 3.484848484848485) internal successors, (115), 32 states have internal predecessors, (115), 11 states have call successors, (56), 7 states have call predecessors, (56), 7 states have return successors, (55), 10 states have call predecessors, (55), 11 states have call successors, (55) [2022-11-16 16:13:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:13:17,045 INFO L93 Difference]: Finished difference Result 3395 states and 4964 transitions. [2022-11-16 16:13:17,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-16 16:13:17,046 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 33 states have (on average 3.484848484848485) internal successors, (115), 32 states have internal predecessors, (115), 11 states have call successors, (56), 7 states have call predecessors, (56), 7 states have return successors, (55), 10 states have call predecessors, (55), 11 states have call successors, (55) Word has length 370 [2022-11-16 16:13:17,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:13:17,057 INFO L225 Difference]: With dead ends: 3395 [2022-11-16 16:13:17,057 INFO L226 Difference]: Without dead ends: 1703 [2022-11-16 16:13:17,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1115 GetRequests, 1060 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 342.9s TimeCoverageRelationStatistics Valid=184, Invalid=3008, Unknown=0, NotChecked=0, Total=3192 [2022-11-16 16:13:17,065 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 33 mSDsluCounter, 16326 mSDsCounter, 0 mSdLazyCounter, 4876 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 16954 SdHoareTripleChecker+Invalid, 7011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2130 IncrementalHoareTripleChecker+Unchecked, 46.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:13:17,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 16954 Invalid, 7011 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5 Valid, 4876 Invalid, 0 Unknown, 2130 Unchecked, 46.0s Time] [2022-11-16 16:13:17,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2022-11-16 16:13:17,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1699. [2022-11-16 16:13:17,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 992 states have (on average 1.3387096774193548) internal successors, (1328), 1067 states have internal predecessors, (1328), 561 states have call successors, (561), 140 states have call predecessors, (561), 145 states have return successors, (589), 551 states have call predecessors, (589), 560 states have call successors, (589) [2022-11-16 16:13:17,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2478 transitions. [2022-11-16 16:13:17,315 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2478 transitions. Word has length 370 [2022-11-16 16:13:17,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:13:17,316 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2478 transitions. [2022-11-16 16:13:17,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 33 states have (on average 3.484848484848485) internal successors, (115), 32 states have internal predecessors, (115), 11 states have call successors, (56), 7 states have call predecessors, (56), 7 states have return successors, (55), 10 states have call predecessors, (55), 11 states have call successors, (55) [2022-11-16 16:13:17,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2478 transitions. [2022-11-16 16:13:17,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-11-16 16:13:17,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:13:17,328 INFO L195 NwaCegarLoop]: trace histogram [21, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:13:17,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 16:13:17,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 16:13:17,544 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:13:17,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:13:17,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1507507982, now seen corresponding path program 1 times [2022-11-16 16:13:17,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:13:17,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531257486] [2022-11-16 16:13:17,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:13:17,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:13:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:13:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-11-16 16:13:18,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:13:18,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531257486] [2022-11-16 16:13:18,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531257486] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:13:18,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117573824] [2022-11-16 16:13:18,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:13:18,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:13:18,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:13:18,879 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:13:18,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 16:13:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:13:20,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2528 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 16:13:20,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:13:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 118 proven. 1 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2022-11-16 16:13:20,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:13:20,841 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2022-11-16 16:13:20,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117573824] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:13:20,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1094693979] [2022-11-16 16:13:20,852 INFO L159 IcfgInterpreter]: Started Sifa with 189 locations of interest [2022-11-16 16:13:20,852 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:13:20,853 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:13:20,854 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:13:20,854 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:13:24,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:24,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:24,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-16 16:13:24,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 55 [2022-11-16 16:13:24,339 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 16:13:24,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:24,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:24,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:24,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:24,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:24,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:24,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 62 [2022-11-16 16:13:24,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 16:13:24,718 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 75 treesize of output 75 [2022-11-16 16:13:25,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:25,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:25,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:25,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:25,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:25,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:25,325 INFO L217 Elim1Store]: Index analysis took 528 ms [2022-11-16 16:13:34,367 WARN L233 SmtUtils]: Spent 9.03s on a formula simplification. DAG size of input: 748 DAG size of output: 324 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 16:13:34,368 INFO L321 Elim1Store]: treesize reduction 3078, result has 18.3 percent of original size [2022-11-16 16:13:34,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 28 select indices, 28 select index equivalence classes, 390 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 32 case distinctions, treesize of input 162 treesize of output 785 [2022-11-16 16:13:35,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:35,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:35,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:36,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:36,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:36,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:36,272 INFO L217 Elim1Store]: Index analysis took 1344 ms [2022-11-16 16:13:51,322 WARN L233 SmtUtils]: Spent 15.04s on a formula simplification. DAG size of input: 1077 DAG size of output: 451 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 16:13:51,324 INFO L321 Elim1Store]: treesize reduction 4376, result has 15.6 percent of original size [2022-11-16 16:13:51,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 35 select indices, 35 select index equivalence classes, 418 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 214 case distinctions, treesize of input 257 treesize of output 989 [2022-11-16 16:13:53,544 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 [2022-11-16 16:13:53,549 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 [2022-11-16 16:13:53,560 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 7 treesize of output 6 [2022-11-16 16:13:54,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 595 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 106 [2022-11-16 16:13:54,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 567 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-16 16:13:54,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 106 treesize of output 92 [2022-11-16 16:13:54,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:13:54,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:54,859 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 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-16 16:13:54,911 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 7 treesize of output 3 [2022-11-16 16:13:57,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 567 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-16 16:13:57,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 595 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 106 [2022-11-16 16:13:57,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 106 treesize of output 92 [2022-11-16 16:13:57,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:57,543 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 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-16 16:13:57,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:13:57,640 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 7 treesize of output 3 [2022-11-16 16:14:10,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:10,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:14:11,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:11,321 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:14:11,331 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:14:11,361 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:14:29,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:29,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:14:29,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:30,279 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:14:30,297 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:14:30,302 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:14:32,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:14:32,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:32,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:33,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:14:34,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:34,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:36,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:14:36,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:36,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:37,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:38,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:14:38,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:15:08,827 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 14 treesize of output 10 [2022-11-16 16:15:08,833 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 14 treesize of output 10 [2022-11-16 16:15:08,842 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 16 treesize of output 12 [2022-11-16 16:15:08,864 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 113 treesize of output 112 [2022-11-16 16:15:08,874 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 113 treesize of output 112 [2022-11-16 16:15:08,883 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 115 treesize of output 114 [2022-11-16 16:15:08,911 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 14 treesize of output 10 [2022-11-16 16:15:08,917 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 16 treesize of output 12 [2022-11-16 16:15:08,925 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 14 treesize of output 10 [2022-11-16 16:15:11,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 38 select indices, 38 select index equivalence classes, 410 disjoint index pairs (out of 703 index pairs), introduced 38 new quantified variables, introduced 0 case distinctions, treesize of input 339 treesize of output 115 [2022-11-16 16:15:11,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:15:11,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:11,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 38 select indices, 38 select index equivalence classes, 410 disjoint index pairs (out of 703 index pairs), introduced 38 new quantified variables, introduced 0 case distinctions, treesize of input 339 treesize of output 115 [2022-11-16 16:15:12,239 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:15:12,252 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:15:39,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:15:40,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 38 select indices, 38 select index equivalence classes, 410 disjoint index pairs (out of 703 index pairs), introduced 38 new quantified variables, introduced 0 case distinctions, treesize of input 339 treesize of output 115 [2022-11-16 16:15:40,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:40,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 38 select indices, 38 select index equivalence classes, 410 disjoint index pairs (out of 703 index pairs), introduced 38 new quantified variables, introduced 0 case distinctions, treesize of input 339 treesize of output 115 [2022-11-16 16:15:40,687 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:15:54,679 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 [2022-11-16 16:15:54,720 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 15 treesize of output 1 [2022-11-16 16:15:54,839 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 15 treesize of output 1 [2022-11-16 16:15:55,088 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 [2022-11-16 16:15:55,100 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 8 treesize of output 7 [2022-11-16 16:15:55,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:15:56,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:15:57,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:15:57,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:16:17,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-16 16:16:17,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:16:17,391 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:218) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 16:16:17,400 INFO L158 Benchmark]: Toolchain (without parser) took 784266.45ms. Allocated memory was 92.3MB in the beginning and 1.0GB in the end (delta: 914.4MB). Free memory was 51.3MB in the beginning and 722.7MB in the end (delta: -671.4MB). Peak memory consumption was 658.0MB. Max. memory is 16.1GB. [2022-11-16 16:16:17,400 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:16:17,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1531.53ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 51.1MB in the beginning and 72.0MB in the end (delta: -20.9MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-11-16 16:16:17,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.39ms. Allocated memory is still 119.5MB. Free memory was 72.0MB in the beginning and 65.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 16:16:17,401 INFO L158 Benchmark]: Boogie Preprocessor took 149.73ms. Allocated memory is still 119.5MB. Free memory was 65.8MB in the beginning and 59.3MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 16:16:17,406 INFO L158 Benchmark]: RCFGBuilder took 3202.33ms. Allocated memory was 119.5MB in the beginning and 178.3MB in the end (delta: 58.7MB). Free memory was 58.7MB in the beginning and 94.6MB in the end (delta: -35.9MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2022-11-16 16:16:17,407 INFO L158 Benchmark]: TraceAbstraction took 779238.97ms. Allocated memory was 178.3MB in the beginning and 1.0GB in the end (delta: 828.4MB). Free memory was 93.6MB in the beginning and 722.7MB in the end (delta: -629.1MB). Peak memory consumption was 616.0MB. Max. memory is 16.1GB. [2022-11-16 16:16:17,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1531.53ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 51.1MB in the beginning and 72.0MB in the end (delta: -20.9MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 136.39ms. Allocated memory is still 119.5MB. Free memory was 72.0MB in the beginning and 65.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 149.73ms. Allocated memory is still 119.5MB. Free memory was 65.8MB in the beginning and 59.3MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3202.33ms. Allocated memory was 119.5MB in the beginning and 178.3MB in the end (delta: 58.7MB). Free memory was 58.7MB in the beginning and 94.6MB in the end (delta: -35.9MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. * TraceAbstraction took 779238.97ms. Allocated memory was 178.3MB in the beginning and 1.0GB in the end (delta: 828.4MB). Free memory was 93.6MB in the beginning and 722.7MB in the end (delta: -629.1MB). Peak memory consumption was 616.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-16 16:16:17,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe8c4b1a27642c802f8c97577aadb7892fddcd015ae43c580aa1247dba190651 --- 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-e04fb08 [2022-11-16 16:16:19,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:16:19,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:16:19,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:16:19,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:16:19,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:16:19,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:16:19,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:16:19,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:16:19,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:16:19,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:16:19,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:16:19,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:16:19,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:16:19,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:16:19,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:16:19,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:16:19,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:16:19,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:16:19,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:16:19,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:16:19,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:16:19,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:16:19,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:16:19,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:16:19,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:16:19,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:16:19,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:16:19,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:16:19,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:16:19,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:16:19,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:16:19,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:16:19,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:16:19,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:16:19,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:16:19,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:16:19,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:16:19,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:16:19,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:16:19,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:16:19,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-16 16:16:19,780 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:16:19,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:16:19,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:16:19,785 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:16:19,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:16:19,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:16:19,786 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:16:19,786 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:16:19,786 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:16:19,787 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:16:19,788 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:16:19,788 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:16:19,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:16:19,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:16:19,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:16:19,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:16:19,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:16:19,791 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 16:16:19,791 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 16:16:19,791 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 16:16:19,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:16:19,791 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:16:19,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:16:19,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:16:19,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 16:16:19,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:16:19,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:16:19,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:16:19,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:16:19,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:16:19,793 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 16:16:19,794 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 16:16:19,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:16:19,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:16:19,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 16:16:19,795 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe8c4b1a27642c802f8c97577aadb7892fddcd015ae43c580aa1247dba190651 [2022-11-16 16:16:20,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:16:20,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:16:20,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:16:20,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:16:20,214 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:16:20,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2022-11-16 16:16:20,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/data/5ec9011f4/7bd5c7b11b86418c8ff209ae2c680eb8/FLAGc0b9ecc5c [2022-11-16 16:16:21,077 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:16:21,078 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2022-11-16 16:16:21,104 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/data/5ec9011f4/7bd5c7b11b86418c8ff209ae2c680eb8/FLAGc0b9ecc5c [2022-11-16 16:16:21,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/data/5ec9011f4/7bd5c7b11b86418c8ff209ae2c680eb8 [2022-11-16 16:16:21,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:16:21,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:16:21,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:16:21,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:16:21,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:16:21,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:16:21" (1/1) ... [2022-11-16 16:16:21,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14703c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:21, skipping insertion in model container [2022-11-16 16:16:21,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:16:21" (1/1) ... [2022-11-16 16:16:21,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:16:21,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:16:22,059 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2022-11-16 16:16:22,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:16:22,138 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-16 16:16:22,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:16:22,317 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2022-11-16 16:16:22,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:16:22,333 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:16:22,547 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2022-11-16 16:16:22,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:16:22,604 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:16:22,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22 WrapperNode [2022-11-16 16:16:22,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:16:22,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:16:22,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:16:22,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:16:22,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,748 INFO L138 Inliner]: procedures = 105, calls = 374, calls flagged for inlining = 31, calls inlined = 28, statements flattened = 1088 [2022-11-16 16:16:22,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:16:22,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:16:22,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:16:22,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:16:22,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,808 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:16:22,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:16:22,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:16:22,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:16:22,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (1/1) ... [2022-11-16 16:16:22,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:16:22,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:16:22,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:16:22,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:16:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_stop [2022-11-16 16:16:22,945 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_stop [2022-11-16 16:16:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_write [2022-11-16 16:16:22,946 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_write [2022-11-16 16:16:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_update_timeout [2022-11-16 16:16:22,946 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_update_timeout [2022-11-16 16:16:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-16 16:16:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 16:16:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 16:16:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 16:16:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 16:16:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 16:16:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_round_time [2022-11-16 16:16:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_round_time [2022-11-16 16:16:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2022-11-16 16:16:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2022-11-16 16:16:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 16:16:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 16:16:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2022-11-16 16:16:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2022-11-16 16:16:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-16 16:16:22,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-16 16:16:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 16:16:22,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 16:16:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2022-11-16 16:16:22,949 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2022-11-16 16:16:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-16 16:16:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-16 16:16:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 16:16:22,950 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 16:16:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2022-11-16 16:16:22,951 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2022-11-16 16:16:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 16:16:22,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 16:16:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 16:16:22,952 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 16:16:22,952 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_keepalive [2022-11-16 16:16:22,953 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_keepalive [2022-11-16 16:16:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2022-11-16 16:16:22,953 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2022-11-16 16:16:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2022-11-16 16:16:22,953 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2022-11-16 16:16:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 16:16:22,953 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-16 16:16:22,954 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-16 16:16:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 16:16:22,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 16:16:22,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:16:22,956 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inw [2022-11-16 16:16:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inw [2022-11-16 16:16:22,957 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outw [2022-11-16 16:16:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outw [2022-11-16 16:16:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 16:16:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:16:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 16:16:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-16 16:16:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:16:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 16:16:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 16:16:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-16 16:16:22,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 16:16:22,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-16 16:16:22,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-16 16:16:22,960 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-16 16:16:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-16 16:16:22,960 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_start [2022-11-16 16:16:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_start [2022-11-16 16:16:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-16 16:16:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-16 16:16:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-16 16:16:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-16 16:16:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 16:16:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 16:16:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-16 16:16:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-16 16:16:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-16 16:16:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-16 16:16:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:16:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:16:23,369 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:16:23,377 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:16:23,691 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 16:16:28,621 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:16:28,643 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:16:28,643 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 16:16:28,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:16:28 BoogieIcfgContainer [2022-11-16 16:16:28,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:16:28,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:16:28,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:16:28,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:16:28,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:16:21" (1/3) ... [2022-11-16 16:16:28,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b89ed55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:16:28, skipping insertion in model container [2022-11-16 16:16:28,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:16:22" (2/3) ... [2022-11-16 16:16:28,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b89ed55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:16:28, skipping insertion in model container [2022-11-16 16:16:28,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:16:28" (3/3) ... [2022-11-16 16:16:28,674 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2022-11-16 16:16:28,697 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:16:28,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:16:28,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:16:28,783 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@1f6c60a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:16:28,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:16:28,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 566 states, 354 states have (on average 1.4067796610169492) internal successors, (498), 386 states have internal predecessors, (498), 181 states have call successors, (181), 30 states have call predecessors, (181), 29 states have return successors, (177), 172 states have call predecessors, (177), 177 states have call successors, (177) [2022-11-16 16:16:28,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-16 16:16:28,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:16:28,821 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:16:28,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:16:28,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:16:28,827 INFO L85 PathProgramCache]: Analyzing trace with hash 360713030, now seen corresponding path program 1 times [2022-11-16 16:16:28,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:16:28,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289298300] [2022-11-16 16:16:28,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:16:28,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:16:28,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:16:28,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 16:16:28,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 16:16:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:16:29,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 16:16:29,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:16:29,707 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-16 16:16:29,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:16:29,708 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:16:29,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289298300] [2022-11-16 16:16:29,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289298300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:16:29,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:16:29,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:16:29,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374839042] [2022-11-16 16:16:29,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:16:29,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 16:16:29,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 16:16:29,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 16:16:29,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:16:29,749 INFO L87 Difference]: Start difference. First operand has 566 states, 354 states have (on average 1.4067796610169492) internal successors, (498), 386 states have internal predecessors, (498), 181 states have call successors, (181), 30 states have call predecessors, (181), 29 states have return successors, (177), 172 states have call predecessors, (177), 177 states have call successors, (177) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 16:16:29,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:16:29,893 INFO L93 Difference]: Finished difference Result 1127 states and 1737 transitions. [2022-11-16 16:16:29,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:16:29,895 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 137 [2022-11-16 16:16:29,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:16:29,921 INFO L225 Difference]: With dead ends: 1127 [2022-11-16 16:16:29,921 INFO L226 Difference]: Without dead ends: 555 [2022-11-16 16:16:29,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:16:29,936 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:16:29,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:16:29,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-11-16 16:16:30,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2022-11-16 16:16:30,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 349 states have (on average 1.3925501432664757) internal successors, (486), 375 states have internal predecessors, (486), 177 states have call successors, (177), 29 states have call predecessors, (177), 28 states have return successors, (176), 171 states have call predecessors, (176), 176 states have call successors, (176) [2022-11-16 16:16:30,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 839 transitions. [2022-11-16 16:16:30,102 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 839 transitions. Word has length 137 [2022-11-16 16:16:30,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:16:30,103 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 839 transitions. [2022-11-16 16:16:30,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 16:16:30,104 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 839 transitions. [2022-11-16 16:16:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-16 16:16:30,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:16:30,114 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:16:30,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 16:16:30,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:16:30,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:16:30,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:16:30,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1314730046, now seen corresponding path program 1 times [2022-11-16 16:16:30,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:16:30,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913401840] [2022-11-16 16:16:30,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:16:30,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:16:30,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:16:30,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 16:16:30,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 16:16:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:16:31,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 16:16:31,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:16:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-16 16:16:31,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:16:31,199 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:16:31,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913401840] [2022-11-16 16:16:31,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913401840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:16:31,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:16:31,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:16:31,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642995548] [2022-11-16 16:16:31,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:16:31,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:16:31,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 16:16:31,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:16:31,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:16:31,204 INFO L87 Difference]: Start difference. First operand 555 states and 839 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:16:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:16:31,446 INFO L93 Difference]: Finished difference Result 1102 states and 1671 transitions. [2022-11-16 16:16:31,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:16:31,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2022-11-16 16:16:31,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:16:31,454 INFO L225 Difference]: With dead ends: 1102 [2022-11-16 16:16:31,454 INFO L226 Difference]: Without dead ends: 556 [2022-11-16 16:16:31,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:16:31,458 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 3 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:16:31,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2498 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:16:31,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-11-16 16:16:31,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2022-11-16 16:16:31,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 350 states have (on average 1.3914285714285715) internal successors, (487), 376 states have internal predecessors, (487), 177 states have call successors, (177), 29 states have call predecessors, (177), 28 states have return successors, (176), 171 states have call predecessors, (176), 176 states have call successors, (176) [2022-11-16 16:16:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 840 transitions. [2022-11-16 16:16:31,502 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 840 transitions. Word has length 137 [2022-11-16 16:16:31,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:16:31,506 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 840 transitions. [2022-11-16 16:16:31,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:16:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 840 transitions. [2022-11-16 16:16:31,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-16 16:16:31,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:16:31,512 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:16:31,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 16:16:31,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:16:31,734 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:16:31,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:16:31,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1589175608, now seen corresponding path program 1 times [2022-11-16 16:16:31,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:16:31,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833103326] [2022-11-16 16:16:31,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:16:31,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:16:31,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:16:31,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 16:16:31,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 16:16:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:16:32,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 16:16:32,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:16:32,688 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 40 proven. 1 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-16 16:16:32,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:16:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-16 16:16:33,162 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:16:33,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833103326] [2022-11-16 16:16:33,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833103326] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:16:33,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [778571262] [2022-11-16 16:16:33,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:16:33,163 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 16:16:33,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 16:16:33,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 16:16:33,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-16 16:16:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:16:33,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:16:33,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:16:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-16 16:16:33,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:16:33,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [778571262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:16:33,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:16:33,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2022-11-16 16:16:33,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992064055] [2022-11-16 16:16:33,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:16:33,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:16:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 16:16:33,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:16:33,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:16:33,961 INFO L87 Difference]: Start difference. First operand 556 states and 840 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-16 16:16:34,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:16:34,122 INFO L93 Difference]: Finished difference Result 567 states and 850 transitions. [2022-11-16 16:16:34,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:16:34,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 143 [2022-11-16 16:16:34,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:16:34,128 INFO L225 Difference]: With dead ends: 567 [2022-11-16 16:16:34,128 INFO L226 Difference]: Without dead ends: 562 [2022-11-16 16:16:34,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:16:34,130 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 834 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:16:34,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 842 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:16:34,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-11-16 16:16:34,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 557. [2022-11-16 16:16:34,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 351 states have (on average 1.3903133903133904) internal successors, (488), 377 states have internal predecessors, (488), 177 states have call successors, (177), 29 states have call predecessors, (177), 28 states have return successors, (176), 171 states have call predecessors, (176), 176 states have call successors, (176) [2022-11-16 16:16:34,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 841 transitions. [2022-11-16 16:16:34,171 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 841 transitions. Word has length 143 [2022-11-16 16:16:34,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:16:34,172 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 841 transitions. [2022-11-16 16:16:34,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-16 16:16:34,172 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 841 transitions. [2022-11-16 16:16:34,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-16 16:16:34,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:16:34,175 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:16:34,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:16:34,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-16 16:16:34,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:16:34,581 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:16:34,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:16:34,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1646433910, now seen corresponding path program 1 times [2022-11-16 16:16:34,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:16:34,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339171888] [2022-11-16 16:16:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:16:34,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:16:34,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:16:34,584 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 16:16:34,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 16:16:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:16:35,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 16:16:35,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:16:35,463 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 40 proven. 1 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-16 16:16:35,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:16:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-16 16:16:35,968 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:16:35,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339171888] [2022-11-16 16:16:35,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339171888] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:16:35,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [751888828] [2022-11-16 16:16:35,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:16:35,969 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 16:16:35,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 16:16:35,971 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 16:16:36,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-16 16:16:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:16:36,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:16:36,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:16:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-16 16:16:37,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:16:37,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [751888828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:16:37,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:16:37,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5] total 9 [2022-11-16 16:16:37,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145995815] [2022-11-16 16:16:37,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:16:37,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:16:37,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 16:16:37,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:16:37,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:16:37,754 INFO L87 Difference]: Start difference. First operand 557 states and 841 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-16 16:16:37,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:16:37,857 INFO L93 Difference]: Finished difference Result 1085 states and 1643 transitions. [2022-11-16 16:16:37,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:16:37,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 143 [2022-11-16 16:16:37,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:16:37,865 INFO L225 Difference]: With dead ends: 1085 [2022-11-16 16:16:37,865 INFO L226 Difference]: Without dead ends: 1046 [2022-11-16 16:16:37,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:16:37,867 INFO L413 NwaCegarLoop]: 1068 mSDtfsCounter, 759 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:16:37,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1867 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:16:37,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-11-16 16:16:37,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1045. [2022-11-16 16:16:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 664 states have (on average 1.3990963855421688) internal successors, (929), 710 states have internal predecessors, (929), 325 states have call successors, (325), 56 states have call predecessors, (325), 55 states have return successors, (324), 316 states have call predecessors, (324), 324 states have call successors, (324) [2022-11-16 16:16:37,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1578 transitions. [2022-11-16 16:16:37,945 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1578 transitions. Word has length 143 [2022-11-16 16:16:37,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:16:37,946 INFO L495 AbstractCegarLoop]: Abstraction has 1045 states and 1578 transitions. [2022-11-16 16:16:37,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-16 16:16:37,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1578 transitions. [2022-11-16 16:16:37,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-16 16:16:37,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:16:37,966 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:16:37,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 16:16:38,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-16 16:16:38,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt [2022-11-16 16:16:38,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:16:38,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:16:38,376 INFO L85 PathProgramCache]: Analyzing trace with hash -319239711, now seen corresponding path program 1 times [2022-11-16 16:16:38,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:16:38,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006309219] [2022-11-16 16:16:38,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:16:38,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:16:38,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:16:38,379 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 16:16:38,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-16 16:16:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:16:39,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 16:16:39,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:16:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 40 proven. 1 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-16 16:16:39,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:16:39,913 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-11-16 16:16:39,913 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:16:39,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006309219] [2022-11-16 16:16:39,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006309219] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:16:39,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [890000357] [2022-11-16 16:16:39,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:16:39,914 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 16:16:39,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 16:16:39,919 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 16:16:39,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc55541a-6db7-42a2-a21b-4c1356b85d17/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-16 16:16:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:16:40,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:16:40,639 INFO L286 TraceCheckSpWp]: Computing forward predicates...