./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P --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 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:39:27,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:39:27,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:39:27,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:39:27,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:39:27,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:39:27,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:39:27,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:39:27,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:39:27,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:39:27,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:39:27,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:39:27,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:39:27,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:39:27,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:39:27,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:39:27,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:39:27,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:39:27,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:39:27,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:39:27,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:39:27,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:39:27,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:39:27,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:39:27,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:39:27,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:39:27,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:39:27,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:39:27,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:39:27,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:39:27,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:39:27,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:39:27,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:39:27,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:39:27,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:39:27,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:39:27,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:39:27,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:39:27,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:39:27,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:39:27,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:39:27,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:39:27,859 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:39:27,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:39:27,861 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:39:27,861 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:39:27,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:39:27,868 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:39:27,868 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:39:27,869 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:39:27,869 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:39:27,869 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:39:27,870 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:39:27,871 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:39:27,871 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:39:27,871 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:39:27,872 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:39:27,872 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:39:27,872 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:39:27,872 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:39:27,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:39:27,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:39:27,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:39:27,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:39:27,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:39:27,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:39:27,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:39:27,875 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:39:27,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:39:27,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:39:27,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:39:27,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:39:27,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:39:27,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:39:27,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:39:27,879 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:39:27,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:39:27,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:39:27,880 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:39:27,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:39:27,880 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b [2021-11-20 23:39:28,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:39:28,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:39:28,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:39:28,224 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:39:28,225 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:39:28,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2021-11-20 23:39:28,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/data/cae12e34e/9f1220cb5beb4c44bd5ff938f862166e/FLAG44f382379 [2021-11-20 23:39:29,099 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:39:29,100 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2021-11-20 23:39:29,132 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/data/cae12e34e/9f1220cb5beb4c44bd5ff938f862166e/FLAG44f382379 [2021-11-20 23:39:29,199 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/data/cae12e34e/9f1220cb5beb4c44bd5ff938f862166e [2021-11-20 23:39:29,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:39:29,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:39:29,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:39:29,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:39:29,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:39:29,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:29" (1/1) ... [2021-11-20 23:39:29,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3bdf12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:29, skipping insertion in model container [2021-11-20 23:39:29,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:29" (1/1) ... [2021-11-20 23:39:29,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:39:29,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:39:30,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2021-11-20 23:39:30,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:39:30,617 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:39:30,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2021-11-20 23:39:30,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:39:30,913 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:39:30,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30 WrapperNode [2021-11-20 23:39:30,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:39:30,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:39:30,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:39:30,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:39:30,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (1/1) ... [2021-11-20 23:39:30,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (1/1) ... [2021-11-20 23:39:31,111 INFO L137 Inliner]: procedures = 144, calls = 800, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1426 [2021-11-20 23:39:31,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:39:31,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:39:31,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:39:31,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:39:31,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (1/1) ... [2021-11-20 23:39:31,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (1/1) ... [2021-11-20 23:39:31,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (1/1) ... [2021-11-20 23:39:31,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (1/1) ... [2021-11-20 23:39:31,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (1/1) ... [2021-11-20 23:39:31,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (1/1) ... [2021-11-20 23:39:31,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (1/1) ... [2021-11-20 23:39:31,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:39:31,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:39:31,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:39:31,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:39:31,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (1/1) ... [2021-11-20 23:39:31,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:39:31,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:31,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:39:31,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:39:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2021-11-20 23:39:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2021-11-20 23:39:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2021-11-20 23:39:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2021-11-20 23:39:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2021-11-20 23:39:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2021-11-20 23:39:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2021-11-20 23:39:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2021-11-20 23:39:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2021-11-20 23:39:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2021-11-20 23:39:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:39:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2021-11-20 23:39:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2021-11-20 23:39:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2021-11-20 23:39:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2021-11-20 23:39:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2021-11-20 23:39:31,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2021-11-20 23:39:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:39:31,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:39:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2021-11-20 23:39:31,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2021-11-20 23:39:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2021-11-20 23:39:31,392 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2021-11-20 23:39:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2021-11-20 23:39:31,392 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2021-11-20 23:39:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:39:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 23:39:31,393 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 23:39:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2021-11-20 23:39:31,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2021-11-20 23:39:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 23:39:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 23:39:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:39:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:39:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2021-11-20 23:39:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2021-11-20 23:39:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:39:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2021-11-20 23:39:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2021-11-20 23:39:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2021-11-20 23:39:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2021-11-20 23:39:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-20 23:39:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-20 23:39:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2021-11-20 23:39:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2021-11-20 23:39:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 23:39:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 23:39:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:39:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2021-11-20 23:39:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2021-11-20 23:39:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-20 23:39:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-20 23:39:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 23:39:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 23:39:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:39:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:39:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2021-11-20 23:39:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2021-11-20 23:39:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2021-11-20 23:39:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2021-11-20 23:39:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:39:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2021-11-20 23:39:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2021-11-20 23:39:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2021-11-20 23:39:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2021-11-20 23:39:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-11-20 23:39:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-11-20 23:39:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2021-11-20 23:39:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2021-11-20 23:39:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:39:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:39:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2021-11-20 23:39:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2021-11-20 23:39:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2021-11-20 23:39:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2021-11-20 23:39:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 23:39:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 23:39:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2021-11-20 23:39:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2021-11-20 23:39:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2021-11-20 23:39:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2021-11-20 23:39:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2021-11-20 23:39:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2021-11-20 23:39:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2021-11-20 23:39:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2021-11-20 23:39:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:39:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2021-11-20 23:39:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2021-11-20 23:39:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2021-11-20 23:39:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2021-11-20 23:39:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 23:39:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 23:39:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:39:31,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:39:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2021-11-20 23:39:31,410 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2021-11-20 23:39:31,820 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:39:31,823 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:39:39,231 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:39:39,531 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:39:39,531 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-20 23:39:39,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:39:39 BoogieIcfgContainer [2021-11-20 23:39:39,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:39:39,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:39:39,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:39:39,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:39:39,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:39:29" (1/3) ... [2021-11-20 23:39:39,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d37322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:39:39, skipping insertion in model container [2021-11-20 23:39:39,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:30" (2/3) ... [2021-11-20 23:39:39,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d37322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:39:39, skipping insertion in model container [2021-11-20 23:39:39,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:39:39" (3/3) ... [2021-11-20 23:39:39,548 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2021-11-20 23:39:39,556 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:39:39,556 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:39:39,628 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:39:39,640 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:39:39,640 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:39:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 540 states, 333 states have (on average 1.3753753753753755) internal successors, (458), 355 states have internal predecessors, (458), 167 states have call successors, (167), 42 states have call predecessors, (167), 42 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2021-11-20 23:39:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-20 23:39:39,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:39,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:39,682 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:39,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:39,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1019690387, now seen corresponding path program 1 times [2021-11-20 23:39:39,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:39,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235832108] [2021-11-20 23:39:39,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:39,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:39:40,134 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:40,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235832108] [2021-11-20 23:39:40,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235832108] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:40,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:40,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:39:40,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909767274] [2021-11-20 23:39:40,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:40,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:40,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:40,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:40,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:39:40,188 INFO L87 Difference]: Start difference. First operand has 540 states, 333 states have (on average 1.3753753753753755) internal successors, (458), 355 states have internal predecessors, (458), 167 states have call successors, (167), 42 states have call predecessors, (167), 42 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:41,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:41,633 INFO L93 Difference]: Finished difference Result 1311 states and 1957 transitions. [2021-11-20 23:39:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:41,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-11-20 23:39:41,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:41,694 INFO L225 Difference]: With dead ends: 1311 [2021-11-20 23:39:41,694 INFO L226 Difference]: Without dead ends: 768 [2021-11-20 23:39:41,707 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:39:41,711 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 347 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:41,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1522 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:39:41,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2021-11-20 23:39:41,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 748. [2021-11-20 23:39:41,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 455 states have (on average 1.3648351648351649) internal successors, (621), 477 states have internal predecessors, (621), 228 states have call successors, (228), 65 states have call predecessors, (228), 64 states have return successors, (222), 222 states have call predecessors, (222), 222 states have call successors, (222) [2021-11-20 23:39:41,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1071 transitions. [2021-11-20 23:39:41,834 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1071 transitions. Word has length 16 [2021-11-20 23:39:41,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:41,835 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1071 transitions. [2021-11-20 23:39:41,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:41,836 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1071 transitions. [2021-11-20 23:39:41,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-20 23:39:41,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:41,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:41,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:39:41,839 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:41,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:41,840 INFO L85 PathProgramCache]: Analyzing trace with hash -243826793, now seen corresponding path program 1 times [2021-11-20 23:39:41,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:41,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759834162] [2021-11-20 23:39:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:41,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:39:41,949 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:41,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759834162] [2021-11-20 23:39:41,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759834162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:41,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:41,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:39:41,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288345720] [2021-11-20 23:39:41,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:41,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:41,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:41,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:41,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:39:41,953 INFO L87 Difference]: Start difference. First operand 748 states and 1071 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:39:42,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:42,434 INFO L93 Difference]: Finished difference Result 1495 states and 2141 transitions. [2021-11-20 23:39:42,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:42,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-20 23:39:42,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:42,446 INFO L225 Difference]: With dead ends: 1495 [2021-11-20 23:39:42,446 INFO L226 Difference]: Without dead ends: 748 [2021-11-20 23:39:42,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:39:42,452 INFO L933 BasicCegarLoop]: 675 mSDtfsCounter, 750 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:42,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [750 Valid, 675 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 23:39:42,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-11-20 23:39:42,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2021-11-20 23:39:42,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 455 states have (on average 1.3604395604395605) internal successors, (619), 477 states have internal predecessors, (619), 228 states have call successors, (228), 65 states have call predecessors, (228), 64 states have return successors, (222), 222 states have call predecessors, (222), 222 states have call successors, (222) [2021-11-20 23:39:42,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1069 transitions. [2021-11-20 23:39:42,517 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1069 transitions. Word has length 15 [2021-11-20 23:39:42,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:42,517 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1069 transitions. [2021-11-20 23:39:42,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:39:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1069 transitions. [2021-11-20 23:39:42,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-20 23:39:42,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:42,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:42,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:39:42,520 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:42,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:42,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1431047827, now seen corresponding path program 1 times [2021-11-20 23:39:42,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:42,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605000192] [2021-11-20 23:39:42,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:42,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:39:42,605 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:42,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605000192] [2021-11-20 23:39:42,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605000192] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:42,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:42,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:39:42,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748749740] [2021-11-20 23:39:42,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:42,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:42,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:42,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:42,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:39:42,608 INFO L87 Difference]: Start difference. First operand 748 states and 1069 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:44,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:39:45,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:45,176 INFO L93 Difference]: Finished difference Result 1655 states and 2347 transitions. [2021-11-20 23:39:45,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:45,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-11-20 23:39:45,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:45,186 INFO L225 Difference]: With dead ends: 1655 [2021-11-20 23:39:45,186 INFO L226 Difference]: Without dead ends: 908 [2021-11-20 23:39:45,190 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:39:45,192 INFO L933 BasicCegarLoop]: 838 mSDtfsCounter, 325 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:45,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 1395 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 182 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:39:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2021-11-20 23:39:45,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 908. [2021-11-20 23:39:45,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 547 states have (on average 1.3455210237659962) internal successors, (736), 574 states have internal predecessors, (736), 273 states have call successors, (273), 88 states have call predecessors, (273), 87 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2021-11-20 23:39:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1276 transitions. [2021-11-20 23:39:45,309 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1276 transitions. Word has length 17 [2021-11-20 23:39:45,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:45,309 INFO L470 AbstractCegarLoop]: Abstraction has 908 states and 1276 transitions. [2021-11-20 23:39:45,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1276 transitions. [2021-11-20 23:39:45,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 23:39:45,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:45,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:45,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:39:45,318 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:45,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:45,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1785446279, now seen corresponding path program 1 times [2021-11-20 23:39:45,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:45,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883339841] [2021-11-20 23:39:45,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:45,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:39:45,419 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:45,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883339841] [2021-11-20 23:39:45,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883339841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:45,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:45,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:39:45,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652555403] [2021-11-20 23:39:45,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:45,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:45,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:45,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:45,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:39:45,426 INFO L87 Difference]: Start difference. First operand 908 states and 1276 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:39:45,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:45,969 INFO L93 Difference]: Finished difference Result 1828 states and 2574 transitions. [2021-11-20 23:39:45,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:45,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-20 23:39:45,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:45,978 INFO L225 Difference]: With dead ends: 1828 [2021-11-20 23:39:45,978 INFO L226 Difference]: Without dead ends: 930 [2021-11-20 23:39:45,982 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:39:45,983 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 10 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:45,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 1349 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 23:39:45,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2021-11-20 23:39:46,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 910. [2021-11-20 23:39:46,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 549 states have (on average 1.3442622950819672) internal successors, (738), 576 states have internal predecessors, (738), 273 states have call successors, (273), 88 states have call predecessors, (273), 87 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2021-11-20 23:39:46,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1278 transitions. [2021-11-20 23:39:46,044 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1278 transitions. Word has length 19 [2021-11-20 23:39:46,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:46,044 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1278 transitions. [2021-11-20 23:39:46,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:39:46,045 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1278 transitions. [2021-11-20 23:39:46,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 23:39:46,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:46,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:46,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:39:46,052 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:46,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:46,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1718297963, now seen corresponding path program 1 times [2021-11-20 23:39:46,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:46,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740131047] [2021-11-20 23:39:46,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:46,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:39:46,155 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:46,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740131047] [2021-11-20 23:39:46,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740131047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:46,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:39:46,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:39:46,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603999027] [2021-11-20 23:39:46,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:46,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:46,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:46,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:46,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:39:46,161 INFO L87 Difference]: Start difference. First operand 910 states and 1278 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:39:48,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:39:49,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:49,404 INFO L93 Difference]: Finished difference Result 2007 states and 2867 transitions. [2021-11-20 23:39:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:49,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-20 23:39:49,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:49,415 INFO L225 Difference]: With dead ends: 2007 [2021-11-20 23:39:49,415 INFO L226 Difference]: Without dead ends: 1107 [2021-11-20 23:39:49,419 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:39:49,420 INFO L933 BasicCegarLoop]: 924 mSDtfsCounter, 183 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:49,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 1642 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2021-11-20 23:39:49,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2021-11-20 23:39:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 918. [2021-11-20 23:39:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 557 states have (on average 1.3464991023339319) internal successors, (750), 584 states have internal predecessors, (750), 273 states have call successors, (273), 88 states have call predecessors, (273), 87 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2021-11-20 23:39:49,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1290 transitions. [2021-11-20 23:39:49,515 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1290 transitions. Word has length 22 [2021-11-20 23:39:49,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:49,515 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1290 transitions. [2021-11-20 23:39:49,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:39:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1290 transitions. [2021-11-20 23:39:49,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-20 23:39:49,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:49,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:49,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:39:49,517 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:49,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:49,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1684008486, now seen corresponding path program 1 times [2021-11-20 23:39:49,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:49,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881033253] [2021-11-20 23:39:49,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:49,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:39:49,632 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:49,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881033253] [2021-11-20 23:39:49,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881033253] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:39:49,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158529103] [2021-11-20 23:39:49,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:49,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:49,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:49,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:39:49,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:39:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:49,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:39:50,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:39:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:39:50,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:39:50,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158529103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:50,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:39:50,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 23:39:50,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005302646] [2021-11-20 23:39:50,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:50,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:50,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:50,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:50,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:50,161 INFO L87 Difference]: Start difference. First operand 918 states and 1290 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:52,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:39:52,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:52,605 INFO L93 Difference]: Finished difference Result 1068 states and 1485 transitions. [2021-11-20 23:39:52,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:52,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-20 23:39:52,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:52,616 INFO L225 Difference]: With dead ends: 1068 [2021-11-20 23:39:52,616 INFO L226 Difference]: Without dead ends: 1065 [2021-11-20 23:39:52,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:52,620 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 673 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:52,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 948 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 23:39:52,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2021-11-20 23:39:52,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1060. [2021-11-20 23:39:52,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 632 states have (on average 1.3291139240506329) internal successors, (840), 662 states have internal predecessors, (840), 320 states have call successors, (320), 108 states have call predecessors, (320), 107 states have return successors, (315), 314 states have call predecessors, (315), 315 states have call successors, (315) [2021-11-20 23:39:52,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1475 transitions. [2021-11-20 23:39:52,692 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1475 transitions. Word has length 27 [2021-11-20 23:39:52,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:52,693 INFO L470 AbstractCegarLoop]: Abstraction has 1060 states and 1475 transitions. [2021-11-20 23:39:52,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:52,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1475 transitions. [2021-11-20 23:39:52,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 23:39:52,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:52,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:52,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:39:52,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:52,920 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:52,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:52,920 INFO L85 PathProgramCache]: Analyzing trace with hash -665039918, now seen corresponding path program 1 times [2021-11-20 23:39:52,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:52,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413062473] [2021-11-20 23:39:52,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:52,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:53,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:39:53,026 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:53,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413062473] [2021-11-20 23:39:53,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413062473] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:39:53,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605609362] [2021-11-20 23:39:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:53,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:53,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:53,032 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:39:53,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:39:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:53,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:39:53,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:39:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:39:53,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:39:53,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605609362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:53,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:39:53,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 23:39:53,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948274299] [2021-11-20 23:39:53,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:53,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:53,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:53,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:53,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:53,541 INFO L87 Difference]: Start difference. First operand 1060 states and 1475 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:54,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:54,012 INFO L93 Difference]: Finished difference Result 1062 states and 1476 transitions. [2021-11-20 23:39:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:54,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-20 23:39:54,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:54,022 INFO L225 Difference]: With dead ends: 1062 [2021-11-20 23:39:54,022 INFO L226 Difference]: Without dead ends: 1059 [2021-11-20 23:39:54,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:54,024 INFO L933 BasicCegarLoop]: 671 mSDtfsCounter, 729 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:54,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [729 Valid, 671 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 23:39:54,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2021-11-20 23:39:54,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1059. [2021-11-20 23:39:54,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 632 states have (on average 1.3275316455696202) internal successors, (839), 661 states have internal predecessors, (839), 319 states have call successors, (319), 108 states have call predecessors, (319), 107 states have return successors, (315), 314 states have call predecessors, (315), 315 states have call successors, (315) [2021-11-20 23:39:54,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1473 transitions. [2021-11-20 23:39:54,092 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1473 transitions. Word has length 28 [2021-11-20 23:39:54,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:54,092 INFO L470 AbstractCegarLoop]: Abstraction has 1059 states and 1473 transitions. [2021-11-20 23:39:54,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:54,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1473 transitions. [2021-11-20 23:39:54,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 23:39:54,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:54,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:54,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:39:54,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 23:39:54,307 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:54,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:54,307 INFO L85 PathProgramCache]: Analyzing trace with hash 858219485, now seen corresponding path program 1 times [2021-11-20 23:39:54,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:54,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103081195] [2021-11-20 23:39:54,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:54,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:54,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:39:54,378 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:54,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103081195] [2021-11-20 23:39:54,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103081195] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:39:54,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000220329] [2021-11-20 23:39:54,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:54,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:54,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:54,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:39:54,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:39:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:54,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:39:54,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:39:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:39:54,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:39:54,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000220329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:54,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:39:54,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 23:39:54,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840798352] [2021-11-20 23:39:54,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:54,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:54,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:54,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:54,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:54,823 INFO L87 Difference]: Start difference. First operand 1059 states and 1473 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:55,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:55,479 INFO L93 Difference]: Finished difference Result 1061 states and 1474 transitions. [2021-11-20 23:39:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:55,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-11-20 23:39:55,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:55,490 INFO L225 Difference]: With dead ends: 1061 [2021-11-20 23:39:55,490 INFO L226 Difference]: Without dead ends: 1058 [2021-11-20 23:39:55,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:55,492 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 726 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:55,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 669 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 23:39:55,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2021-11-20 23:39:55,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1058. [2021-11-20 23:39:55,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 632 states have (on average 1.3259493670886076) internal successors, (838), 660 states have internal predecessors, (838), 318 states have call successors, (318), 108 states have call predecessors, (318), 107 states have return successors, (315), 314 states have call predecessors, (315), 315 states have call successors, (315) [2021-11-20 23:39:55,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1471 transitions. [2021-11-20 23:39:55,617 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1471 transitions. Word has length 29 [2021-11-20 23:39:55,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:55,617 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1471 transitions. [2021-11-20 23:39:55,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:55,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1471 transitions. [2021-11-20 23:39:55,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 23:39:55,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:55,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:55,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:39:55,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-20 23:39:55,841 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:55,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:55,842 INFO L85 PathProgramCache]: Analyzing trace with hash 834625589, now seen corresponding path program 1 times [2021-11-20 23:39:55,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:55,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790995107] [2021-11-20 23:39:55,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:55,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:55,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:39:55,935 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:55,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790995107] [2021-11-20 23:39:55,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790995107] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:39:55,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738507345] [2021-11-20 23:39:55,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:55,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:55,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:55,938 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:39:55,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:39:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:56,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:39:56,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:39:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:39:56,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:39:56,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738507345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:56,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:39:56,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-20 23:39:56,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309725652] [2021-11-20 23:39:56,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:56,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:56,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:56,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:56,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:56,440 INFO L87 Difference]: Start difference. First operand 1058 states and 1471 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:57,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:57,006 INFO L93 Difference]: Finished difference Result 1211 states and 1667 transitions. [2021-11-20 23:39:57,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:39:57,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-11-20 23:39:57,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:57,020 INFO L225 Difference]: With dead ends: 1211 [2021-11-20 23:39:57,020 INFO L226 Difference]: Without dead ends: 1184 [2021-11-20 23:39:57,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:57,024 INFO L933 BasicCegarLoop]: 786 mSDtfsCounter, 668 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:57,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [668 Valid, 1043 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 23:39:57,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2021-11-20 23:39:57,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1184. [2021-11-20 23:39:57,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 695 states have (on average 1.306474820143885) internal successors, (908), 725 states have internal predecessors, (908), 362 states have call successors, (362), 127 states have call predecessors, (362), 126 states have return successors, (361), 360 states have call predecessors, (361), 361 states have call successors, (361) [2021-11-20 23:39:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1631 transitions. [2021-11-20 23:39:57,115 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1631 transitions. Word has length 30 [2021-11-20 23:39:57,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:57,116 INFO L470 AbstractCegarLoop]: Abstraction has 1184 states and 1631 transitions. [2021-11-20 23:39:57,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:39:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1631 transitions. [2021-11-20 23:39:57,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-20 23:39:57,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:57,118 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:57,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:39:57,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:57,344 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:57,344 INFO L85 PathProgramCache]: Analyzing trace with hash 904140899, now seen corresponding path program 1 times [2021-11-20 23:39:57,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:57,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631740556] [2021-11-20 23:39:57,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:57,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:57,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:39:57,456 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:57,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631740556] [2021-11-20 23:39:57,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631740556] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:39:57,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628201211] [2021-11-20 23:39:57,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:57,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:57,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:57,458 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:39:57,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:39:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:57,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:39:57,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:39:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:39:57,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:39:57,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628201211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:57,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:39:57,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-20 23:39:57,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800786602] [2021-11-20 23:39:57,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:57,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:39:57,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:57,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:39:57,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:39:57,982 INFO L87 Difference]: Start difference. First operand 1184 states and 1631 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:00,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:40:00,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:00,522 INFO L93 Difference]: Finished difference Result 2364 states and 3258 transitions. [2021-11-20 23:40:00,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:40:00,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2021-11-20 23:40:00,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:00,533 INFO L225 Difference]: With dead ends: 2364 [2021-11-20 23:40:00,533 INFO L226 Difference]: Without dead ends: 1190 [2021-11-20 23:40:00,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:40:00,540 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 4 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:00,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 1280 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 159 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:40:00,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2021-11-20 23:40:00,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1186. [2021-11-20 23:40:00,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 697 states have (on average 1.3055954088952655) internal successors, (910), 727 states have internal predecessors, (910), 362 states have call successors, (362), 127 states have call predecessors, (362), 126 states have return successors, (361), 360 states have call predecessors, (361), 361 states have call successors, (361) [2021-11-20 23:40:00,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1633 transitions. [2021-11-20 23:40:00,614 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1633 transitions. Word has length 50 [2021-11-20 23:40:00,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:00,615 INFO L470 AbstractCegarLoop]: Abstraction has 1186 states and 1633 transitions. [2021-11-20 23:40:00,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 23:40:00,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1633 transitions. [2021-11-20 23:40:00,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-20 23:40:00,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:00,620 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:40:00,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:40:00,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 23:40:00,839 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:40:00,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:00,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1551679401, now seen corresponding path program 1 times [2021-11-20 23:40:00,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:00,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797025868] [2021-11-20 23:40:00,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:00,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:00,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:40:00,955 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:00,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797025868] [2021-11-20 23:40:00,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797025868] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:40:00,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327158732] [2021-11-20 23:40:00,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:00,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:40:00,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:40:00,957 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:40:00,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63eac71-e45a-4572-81c6-64a38f65cea0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 23:40:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:01,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:40:01,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:40:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:40:01,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:40:01,662 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:40:01,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327158732] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:40:01,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [436700986] [2021-11-20 23:40:01,694 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2021-11-20 23:40:01,694 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:40:01,698 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:40:01,703 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:40:01,704 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:40:03,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 140 treesize of output 116 [2021-11-20 23:40:04,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 134 treesize of output 110 [2021-11-20 23:40:04,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-20 23:40:05,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:40:05,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 325 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 916 treesize of output 801 [2021-11-20 23:40:08,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-20 23:41:09,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:09,952 INFO L244 Elim1Store]: Index analysis took 148 ms [2021-11-20 23:41:12,739 INFO L354 Elim1Store]: treesize reduction 640, result has 47.4 percent of original size [2021-11-20 23:41:12,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 65 select indices, 65 select index equivalence classes, 2082 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 64 case distinctions, treesize of input 332 treesize of output 782 [2021-11-20 23:41:17,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:17,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:17,800 INFO L244 Elim1Store]: Index analysis took 221 ms [2021-11-20 23:41:21,812 INFO L354 Elim1Store]: treesize reduction 1152, result has 33.4 percent of original size [2021-11-20 23:41:21,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 67 select indices, 67 select index equivalence classes, 2147 disjoint index pairs (out of 2211 index pairs), introduced 67 new quantified variables, introduced 128 case distinctions, treesize of input 342 treesize of output 793 [2021-11-20 23:41:29,373 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-20 23:41:29,398 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-20 23:41:31,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 67 [2021-11-20 23:41:31,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,541 INFO L354 Elim1Store]: treesize reduction 125, result has 9.4 percent of original size [2021-11-20 23:41:31,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 69 [2021-11-20 23:41:31,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 91 [2021-11-20 23:41:31,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2021-11-20 23:41:31,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:31,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2021-11-20 23:41:32,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 91 [2021-11-20 23:41:32,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:32,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2021-11-20 23:41:36,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:36,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,586 INFO L354 Elim1Store]: treesize reduction 1337, result has 12.2 percent of original size [2021-11-20 23:41:37,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 57 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 223 treesize of output 350 [2021-11-20 23:41:37,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:37,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:38,055 INFO L354 Elim1Store]: treesize reduction 817, result has 13.9 percent of original size [2021-11-20 23:41:38,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 46 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 320 treesize of output 438 [2021-11-20 23:41:39,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 129 [2021-11-20 23:41:39,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 28 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 87 [2021-11-20 23:41:39,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 137 [2021-11-20 23:41:39,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:39,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 121 [2021-11-20 23:41:40,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 102 [2021-11-20 23:41:40,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 83 [2021-11-20 23:41:40,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:40,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 68 [2021-11-20 23:41:45,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:27,196 WARN L227 SmtUtils]: Spent 41.58s on a formula simplification. DAG size of input: 187 DAG size of output: 128 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:42:27,198 INFO L354 Elim1Store]: treesize reduction 346, result has 53.6 percent of original size [2021-11-20 23:42:27,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 482 treesize of output 808 [2021-11-20 23:42:27,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:33,549 WARN L227 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 52 DAG size of output: 24 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:42:33,550 INFO L354 Elim1Store]: treesize reduction 144, result has 21.3 percent of original size [2021-11-20 23:42:33,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 808 treesize of output 808 [2021-11-20 23:42:33,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,857 WARN L227 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 52 DAG size of output: 24 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:42:38,857 INFO L354 Elim1Store]: treesize reduction 144, result has 21.3 percent of original size [2021-11-20 23:42:38,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 808 treesize of output 808 [2021-11-20 23:42:38,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:38,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,878 WARN L227 SmtUtils]: Spent 34.92s on a formula simplification. DAG size of input: 326 DAG size of output: 110 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:43:13,879 INFO L354 Elim1Store]: treesize reduction 2308, result has 13.8 percent of original size [2021-11-20 23:43:13,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 808 treesize of output 1105 [2021-11-20 23:43:13,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:13,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:29,892 WARN L227 SmtUtils]: Spent 15.86s on a formula simplification. DAG size of input: 377 DAG size of output: 108 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:43:29,893 INFO L354 Elim1Store]: treesize reduction 1182, result has 19.9 percent of original size [2021-11-20 23:43:29,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 11 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 67 case distinctions, treesize of input 1105 treesize of output 1341 [2021-11-20 23:43:29,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:31,701 INFO L354 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2021-11-20 23:43:31,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1396 treesize of output 1398 [2021-11-20 23:43:31,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:33,599 INFO L354 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2021-11-20 23:43:33,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1395 treesize of output 1397 [2021-11-20 23:43:33,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:33,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:33,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:33,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:33,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:33,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,415 INFO L354 Elim1Store]: treesize reduction 292, result has 14.4 percent of original size [2021-11-20 23:43:36,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1366 treesize of output 1394 [2021-11-20 23:43:36,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,207 INFO L354 Elim1Store]: treesize reduction 190, result has 17.7 percent of original size [2021-11-20 23:43:37,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1382 treesize of output 1398 [2021-11-20 23:43:37,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,551 INFO L354 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2021-11-20 23:43:37,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1386 treesize of output 1388 [2021-11-20 23:43:37,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,829 INFO L354 Elim1Store]: treesize reduction 192, result has 16.9 percent of original size [2021-11-20 23:43:37,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1385 treesize of output 1399 [2021-11-20 23:47:03,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 91 [2021-11-20 23:47:03,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:03,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2021-11-20 23:47:04,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:04,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 91 [2021-11-20 23:47:04,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:04,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:04,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:04,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2021-11-20 23:47:04,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:04,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:04,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:04,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:04,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:04,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:04,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2021-11-20 23:47:05,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 67 [2021-11-20 23:47:05,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:47:05,239 INFO L354 Elim1Store]: treesize reduction 125, result has 9.4 percent of original size [2021-11-20 23:47:05,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 69 [2021-11-20 23:48:25,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:25,292 INFO L244 Elim1Store]: Index analysis took 145 ms [2021-11-20 23:48:27,825 INFO L354 Elim1Store]: treesize reduction 640, result has 47.4 percent of original size [2021-11-20 23:48:27,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 65 select indices, 65 select index equivalence classes, 2082 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 64 case distinctions, treesize of input 332 treesize of output 782 [2021-11-20 23:48:40,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:41,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:41,099 INFO L244 Elim1Store]: Index analysis took 184 ms [2021-11-20 23:48:45,036 INFO L354 Elim1Store]: treesize reduction 1152, result has 33.4 percent of original size [2021-11-20 23:48:45,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 67 select indices, 67 select index equivalence classes, 2147 disjoint index pairs (out of 2211 index pairs), introduced 67 new quantified variables, introduced 128 case distinctions, treesize of input 342 treesize of output 793 [2021-11-20 23:48:49,189 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-20 23:48:49,248 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 64 [2021-11-20 23:48:50,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 91 [2021-11-20 23:48:50,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2021-11-20 23:48:50,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2021-11-20 23:48:50,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 67 [2021-11-20 23:48:50,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:50,870 INFO L354 Elim1Store]: treesize reduction 125, result has 9.4 percent of original size [2021-11-20 23:48:50,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 69 [2021-11-20 23:48:51,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 91 [2021-11-20 23:48:51,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:51,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2021-11-20 23:48:55,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:55,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 137 [2021-11-20 23:48:56,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 111 [2021-11-20 23:48:56,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 83 [2021-11-20 23:48:56,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 68 [2021-11-20 23:48:56,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:56,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,779 INFO L354 Elim1Store]: treesize reduction 1337, result has 12.2 percent of original size [2021-11-20 23:48:57,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 57 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 223 treesize of output 350 [2021-11-20 23:48:57,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:57,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:58,245 INFO L354 Elim1Store]: treesize reduction 817, result has 13.9 percent of original size [2021-11-20 23:48:58,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 46 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 320 treesize of output 438 [2021-11-20 23:49:00,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 129 [2021-11-20 23:49:00,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:00,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 28 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 87 [2021-11-20 23:49:06,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:49,680 WARN L227 SmtUtils]: Spent 43.48s on a formula simplification. DAG size of input: 187 DAG size of output: 128 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:49:49,681 INFO L354 Elim1Store]: treesize reduction 346, result has 53.6 percent of original size [2021-11-20 23:49:49,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 482 treesize of output 808 [2021-11-20 23:49:49,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:56,106 WARN L227 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 52 DAG size of output: 24 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:49:56,107 INFO L354 Elim1Store]: treesize reduction 144, result has 21.3 percent of original size [2021-11-20 23:49:56,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 808 treesize of output 808 [2021-11-20 23:49:56,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:01,744 WARN L227 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 52 DAG size of output: 24 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:50:01,744 INFO L354 Elim1Store]: treesize reduction 144, result has 21.3 percent of original size [2021-11-20 23:50:01,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 808 treesize of output 808 [2021-11-20 23:50:01,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:04,986 INFO L354 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2021-11-20 23:50:04,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 808 treesize of output 810 [2021-11-20 23:50:05,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:07,318 INFO L354 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2021-11-20 23:50:07,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 807 treesize of output 809 [2021-11-20 23:50:07,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:09,335 INFO L354 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2021-11-20 23:50:09,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 806 treesize of output 808 [2021-11-20 23:50:09,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:09,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:09,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:12,114 INFO L354 Elim1Store]: treesize reduction 192, result has 16.9 percent of original size [2021-11-20 23:50:12,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 805 treesize of output 819 [2021-11-20 23:50:12,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,929 INFO L354 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2021-11-20 23:50:13,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 816 treesize of output 818 [2021-11-20 23:50:13,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:13,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:14,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,542 WARN L227 SmtUtils]: Spent 18.52s on a formula simplification. DAG size of input: 326 DAG size of output: 110 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:50:32,543 INFO L354 Elim1Store]: treesize reduction 2308, result has 13.8 percent of original size [2021-11-20 23:50:32,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 815 treesize of output 1112 [2021-11-20 23:50:32,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:32,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,240 WARN L227 SmtUtils]: Spent 11.58s on a formula simplification. DAG size of input: 377 DAG size of output: 108 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:50:44,254 INFO L354 Elim1Store]: treesize reduction 1182, result has 19.9 percent of original size [2021-11-20 23:50:44,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 11 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 67 case distinctions, treesize of input 1112 treesize of output 1348 [2021-11-20 23:50:44,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:50:44,931 INFO L354 Elim1Store]: treesize reduction 414, result has 12.5 percent of original size [2021-11-20 23:50:44,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1375 treesize of output 1417