./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/tcpy.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/tcpy.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh --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 32bit --witnessprinter.graph.data.programhash a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:34:48,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:34:48,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:34:48,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:34:48,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:34:48,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:34:48,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:34:48,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:34:48,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:34:48,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:34:48,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:34:48,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:34:48,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:34:48,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:34:48,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:34:48,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:34:48,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:34:48,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:34:48,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:34:48,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:34:48,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:34:48,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:34:48,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:34:48,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:34:48,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:34:48,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:34:48,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:34:48,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:34:48,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:34:48,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:34:48,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:34:48,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:34:48,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:34:48,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:34:48,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:34:48,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:34:48,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:34:48,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:34:48,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:34:48,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:34:48,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:34:48,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:34:48,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:34:48,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:34:48,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:34:48,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:34:48,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:34:48,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:34:48,250 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:34:48,250 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:34:48,250 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:34:48,250 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:34:48,251 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:34:48,251 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:34:48,251 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:34:48,251 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:34:48,251 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:34:48,252 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:34:48,252 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:34:48,252 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:34:48,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:34:48,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:34:48,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:34:48,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:34:48,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:34:48,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:34:48,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:34:48,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:34:48,254 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:34:48,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:34:48,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:34:48,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:34:48,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:34:48,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:34:48,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:34:48,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:34:48,256 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:34:48,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:34:48,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:34:48,256 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:34:48,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:34:48,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:34:48,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:34:48,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 [2022-12-14 09:34:48,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:34:48,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:34:48,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:34:48,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:34:48,463 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:34:48,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-tiling/tcpy.c [2022-12-14 09:34:50,998 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:34:51,150 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:34:51,150 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/sv-benchmarks/c/array-tiling/tcpy.c [2022-12-14 09:34:51,155 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/data/f33e20c70/48b0225674174e0396479da3f61655a4/FLAG0e4eda323 [2022-12-14 09:34:51,561 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/data/f33e20c70/48b0225674174e0396479da3f61655a4 [2022-12-14 09:34:51,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:34:51,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:34:51,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:34:51,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:34:51,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:34:51,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e802fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51, skipping insertion in model container [2022-12-14 09:34:51,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:34:51,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:34:51,679 WARN L237 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_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-12-14 09:34:51,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:34:51,698 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:34:51,707 WARN L237 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_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-12-14 09:34:51,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:34:51,721 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:34:51,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51 WrapperNode [2022-12-14 09:34:51,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:34:51,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:34:51,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:34:51,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:34:51,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,746 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-12-14 09:34:51,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:34:51,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:34:51,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:34:51,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:34:51,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,766 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:34:51,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:34:51,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:34:51,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:34:51,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (1/1) ... [2022-12-14 09:34:51,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:34:51,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:34:51,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:34:51,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:34:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:34:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:34:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:34:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:34:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:34:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:34:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:34:51,886 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:34:51,887 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:34:52,016 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:34:52,053 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:34:52,053 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 09:34:52,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:34:52 BoogieIcfgContainer [2022-12-14 09:34:52,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:34:52,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:34:52,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:34:52,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:34:52,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:34:51" (1/3) ... [2022-12-14 09:34:52,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686b6141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:34:52, skipping insertion in model container [2022-12-14 09:34:52,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:51" (2/3) ... [2022-12-14 09:34:52,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686b6141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:34:52, skipping insertion in model container [2022-12-14 09:34:52,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:34:52" (3/3) ... [2022-12-14 09:34:52,064 INFO L112 eAbstractionObserver]: Analyzing ICFG tcpy.c [2022-12-14 09:34:52,079 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:34:52,079 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:34:52,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:34:52,124 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60bb88b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:34:52,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:34:52,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:34:52,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 09:34:52,134 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:34:52,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:34:52,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:34:52,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:34:52,140 INFO L85 PathProgramCache]: Analyzing trace with hash -680536009, now seen corresponding path program 1 times [2022-12-14 09:34:52,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:34:52,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085489683] [2022-12-14 09:34:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:52,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:34:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:52,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:34:52,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:34:52,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085489683] [2022-12-14 09:34:52,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085489683] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:34:52,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:34:52,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:34:52,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6940525] [2022-12-14 09:34:52,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:34:52,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:34:52,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:34:52,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:34:52,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:34:52,429 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:34:52,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:34:52,477 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2022-12-14 09:34:52,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:34:52,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 09:34:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:34:52,487 INFO L225 Difference]: With dead ends: 24 [2022-12-14 09:34:52,487 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 09:34:52,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:34:52,493 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:34:52,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:34:52,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 09:34:52,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 09:34:52,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:34:52,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-12-14 09:34:52,520 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2022-12-14 09:34:52,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:34:52,520 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-12-14 09:34:52,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:34:52,521 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-12-14 09:34:52,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 09:34:52,521 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:34:52,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:34:52,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:34:52,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:34:52,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:34:52,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1007490258, now seen corresponding path program 1 times [2022-12-14 09:34:52,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:34:52,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674773100] [2022-12-14 09:34:52,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:52,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:34:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:34:52,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:34:52,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674773100] [2022-12-14 09:34:52,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674773100] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:34:52,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242583466] [2022-12-14 09:34:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:52,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:34:52,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:34:52,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:34:52,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:34:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:52,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:34:52,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:34:52,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:34:52,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:34:52,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:34:52,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242583466] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:34:52,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [117008201] [2022-12-14 09:34:52,780 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:34:52,780 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:34:52,784 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:34:52,797 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:34:52,797 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:34:52,995 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-12-14 09:34:52,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-12-14 09:34:53,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-12-14 09:34:53,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 103 [2022-12-14 09:34:53,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:53,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:53,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:53,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:53,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:53,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:53,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:53,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:53,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:53,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:53,335 INFO L321 Elim1Store]: treesize reduction 144, result has 13.3 percent of original size [2022-12-14 09:34:53,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 32 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 436 treesize of output 417 [2022-12-14 09:34:53,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 09:34:53,477 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:34:53,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [117008201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:34:53,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:34:53,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 11 [2022-12-14 09:34:53,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067256833] [2022-12-14 09:34:53,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:34:53,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:34:53,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:34:53,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:34:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:34:53,624 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:34:53,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:34:53,766 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2022-12-14 09:34:53,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:34:53,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 09:34:53,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:34:53,767 INFO L225 Difference]: With dead ends: 17 [2022-12-14 09:34:53,767 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 09:34:53,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:34:53,768 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:34:53,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:34:53,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 09:34:53,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 09:34:53,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:34:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-12-14 09:34:53,772 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2022-12-14 09:34:53,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:34:53,772 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-12-14 09:34:53,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:34:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-12-14 09:34:53,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:34:53,772 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:34:53,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:34:53,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:34:53,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:34:53,974 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:34:53,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:34:53,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1160125243, now seen corresponding path program 1 times [2022-12-14 09:34:53,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:34:53,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080956803] [2022-12-14 09:34:53,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:53,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:34:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:34:54,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:34:54,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080956803] [2022-12-14 09:34:54,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080956803] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:34:54,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377810490] [2022-12-14 09:34:54,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:54,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:34:54,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:34:54,160 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:34:54,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:34:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:54,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:34:54,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:34:54,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:34:54,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:34:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:34:54,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377810490] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:34:54,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [827631666] [2022-12-14 09:34:54,255 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:34:54,255 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:34:54,255 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:34:54,256 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:34:54,256 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:34:54,361 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-12-14 09:34:54,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-12-14 09:34:54,462 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-12-14 09:34:54,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-12-14 09:34:54,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-12-14 09:34:54,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:54,690 INFO L321 Elim1Store]: treesize reduction 126, result has 21.7 percent of original size [2022-12-14 09:34:54,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 13 case distinctions, treesize of input 426 treesize of output 418 [2022-12-14 09:34:54,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 09:34:54,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:54,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:54,919 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-12-14 09:34:54,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 53 [2022-12-14 09:34:54,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:54,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:54,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:54,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:54,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:54,979 INFO L321 Elim1Store]: treesize reduction 60, result has 31.0 percent of original size [2022-12-14 09:34:54,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 318 treesize of output 336 [2022-12-14 09:34:55,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:55,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:55,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:55,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:55,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:55,046 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-12-14 09:34:55,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 53 [2022-12-14 09:34:55,101 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:34:55,500 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '228#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))) |ULTIMATE.start_main_#t~mem14#1|) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= |ULTIMATE.start_main_#t~mem14#1| |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 09:34:55,501 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:34:55,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:34:55,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-14 09:34:55,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659508323] [2022-12-14 09:34:55,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:34:55,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:34:55,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:34:55,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:34:55,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-12-14 09:34:55,503 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:34:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:34:55,526 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-12-14 09:34:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:34:55,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 09:34:55,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:34:55,527 INFO L225 Difference]: With dead ends: 21 [2022-12-14 09:34:55,527 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 09:34:55,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-12-14 09:34:55,528 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:34:55,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:34:55,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 09:34:55,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 09:34:55,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:34:55,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-12-14 09:34:55,533 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-12-14 09:34:55,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:34:55,533 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-12-14 09:34:55,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:34:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-12-14 09:34:55,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:34:55,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:34:55,534 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:34:55,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:34:55,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:34:55,735 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:34:55,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:34:55,735 INFO L85 PathProgramCache]: Analyzing trace with hash -144270058, now seen corresponding path program 2 times [2022-12-14 09:34:55,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:34:55,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004613308] [2022-12-14 09:34:55,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:55,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:34:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:56,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 09:34:56,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:34:56,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004613308] [2022-12-14 09:34:56,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004613308] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:34:56,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896407608] [2022-12-14 09:34:56,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:34:56,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:34:56,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:34:56,037 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:34:56,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:34:56,083 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 09:34:56,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:34:56,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 09:34:56,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:34:56,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 09:34:56,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:56,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:56,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 27 [2022-12-14 09:34:56,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 09:34:56,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:34:56,244 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:34:56,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 478 treesize of output 454 [2022-12-14 09:34:56,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 186 [2022-12-14 09:34:58,214 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-12-14 09:34:58,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 432 treesize of output 387 [2022-12-14 09:34:58,274 INFO L321 Elim1Store]: treesize reduction 27, result has 12.9 percent of original size [2022-12-14 09:34:58,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 365 treesize of output 331 [2022-12-14 09:34:58,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,333 INFO L321 Elim1Store]: treesize reduction 15, result has 51.6 percent of original size [2022-12-14 09:34:58,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 353 treesize of output 338 [2022-12-14 09:34:58,374 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:58,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 420 treesize of output 376 [2022-12-14 09:34:58,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 262 [2022-12-14 09:34:58,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 117 [2022-12-14 09:34:58,470 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:58,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 342 treesize of output 1 [2022-12-14 09:34:58,486 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:58,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 271 treesize of output 231 [2022-12-14 09:34:58,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:58,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:58,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:58,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:58,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,601 INFO L321 Elim1Store]: treesize reduction 20, result has 35.5 percent of original size [2022-12-14 09:34:58,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 342 treesize of output 298 [2022-12-14 09:34:58,663 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:58,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 353 treesize of output 1 [2022-12-14 09:34:58,677 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:58,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 342 treesize of output 1 [2022-12-14 09:34:58,705 INFO L321 Elim1Store]: treesize reduction 23, result has 25.8 percent of original size [2022-12-14 09:34:58,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 275 treesize of output 242 [2022-12-14 09:34:58,742 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:58,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 353 treesize of output 1 [2022-12-14 09:34:58,773 INFO L321 Elim1Store]: treesize reduction 5, result has 83.9 percent of original size [2022-12-14 09:34:58,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 87 [2022-12-14 09:34:58,799 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:58,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 151 treesize of output 1 [2022-12-14 09:34:58,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 262 [2022-12-14 09:34:58,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,840 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:58,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 342 treesize of output 1 [2022-12-14 09:34:58,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,857 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 09:34:58,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 259 treesize of output 1 [2022-12-14 09:34:58,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:58,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 174 [2022-12-14 09:34:58,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:58,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:58,956 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:58,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 342 treesize of output 1 [2022-12-14 09:34:58,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:58,969 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:58,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 275 treesize of output 1 [2022-12-14 09:34:58,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:58,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:58,996 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:58,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 1 [2022-12-14 09:34:59,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 146 [2022-12-14 09:34:59,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,045 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 1 [2022-12-14 09:34:59,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:34:59,079 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 155 treesize of output 1 [2022-12-14 09:34:59,089 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 222 treesize of output 1 [2022-12-14 09:34:59,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,102 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 300 treesize of output 1 [2022-12-14 09:34:59,112 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 1 [2022-12-14 09:34:59,126 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 300 treesize of output 1 [2022-12-14 09:34:59,141 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 09:34:59,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 323 treesize of output 302 [2022-12-14 09:34:59,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,224 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 233 treesize of output 1 [2022-12-14 09:34:59,242 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 420 treesize of output 1 [2022-12-14 09:34:59,253 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 09:34:59,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 443 treesize of output 1 [2022-12-14 09:34:59,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,282 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 1 [2022-12-14 09:34:59,292 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 204 treesize of output 1 [2022-12-14 09:34:59,304 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 222 treesize of output 1 [2022-12-14 09:34:59,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,314 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 09:34:59,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 31 [2022-12-14 09:34:59,323 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 1 [2022-12-14 09:34:59,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,342 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 1 [2022-12-14 09:34:59,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,355 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 342 treesize of output 1 [2022-12-14 09:34:59,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,369 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 1 [2022-12-14 09:34:59,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,381 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 275 treesize of output 1 [2022-12-14 09:34:59,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,393 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 1 [2022-12-14 09:34:59,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,404 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 1 [2022-12-14 09:34:59,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,416 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 204 treesize of output 1 [2022-12-14 09:34:59,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,431 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 1 [2022-12-14 09:34:59,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,443 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 204 treesize of output 1 [2022-12-14 09:34:59,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,456 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 275 treesize of output 1 [2022-12-14 09:34:59,470 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 342 treesize of output 1 [2022-12-14 09:34:59,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,483 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,499 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 271 treesize of output 1 [2022-12-14 09:34:59,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,513 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 151 treesize of output 1 [2022-12-14 09:34:59,527 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 271 treesize of output 1 [2022-12-14 09:34:59,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,541 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-12-14 09:34:59,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 151 treesize of output 1 [2022-12-14 09:34:59,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,624 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-12-14 09:34:59,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 420 treesize of output 1 [2022-12-14 09:34:59,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 467 treesize of output 455 [2022-12-14 09:34:59,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 70 [2022-12-14 09:34:59,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:34:59,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:34:59,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:34:59,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:34:59,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:34:59,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:34:59,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:34:59,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:34:59,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:34:59,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:34:59,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:35:00,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:35:00,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-12-14 09:35:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 09:35:00,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896407608] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:35:00,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [724676934] [2022-12-14 09:35:00,121 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:35:00,121 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:35:00,121 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:35:00,122 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:35:00,122 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:35:00,213 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-12-14 09:35:00,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-12-14 09:35:00,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-12-14 09:35:00,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-12-14 09:35:00,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:35:00,355 INFO L321 Elim1Store]: treesize reduction 126, result has 21.7 percent of original size [2022-12-14 09:35:00,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 13 case distinctions, treesize of input 426 treesize of output 418 [2022-12-14 09:35:00,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 09:35:00,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:35:00,512 INFO L321 Elim1Store]: treesize reduction 37, result has 35.1 percent of original size [2022-12-14 09:35:00,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 39 [2022-12-14 09:35:00,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:35:00,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:35:00,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:35:00,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:35:00,624 INFO L321 Elim1Store]: treesize reduction 200, result has 34.0 percent of original size [2022-12-14 09:35:00,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 336 treesize of output 392 [2022-12-14 09:35:00,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:35:00,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:35:00,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:35:00,707 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-12-14 09:35:00,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 53 [2022-12-14 09:35:00,720 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:35:01,008 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '358#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))) |ULTIMATE.start_main_#t~mem14#1|) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= |ULTIMATE.start_main_#t~mem14#1| |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 09:35:01,008 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:35:01,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:35:01,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-12-14 09:35:01,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547910072] [2022-12-14 09:35:01,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:35:01,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 09:35:01,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:01,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 09:35:01,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-12-14 09:35:01,010 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:35:01,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:01,137 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-12-14 09:35:01,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 09:35:01,138 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 09:35:01,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:01,138 INFO L225 Difference]: With dead ends: 19 [2022-12-14 09:35:01,138 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 09:35:01,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2022-12-14 09:35:01,139 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 33 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:01,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 18 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:35:01,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 09:35:01,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-14 09:35:01,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:35:01,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-14 09:35:01,144 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2022-12-14 09:35:01,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:01,144 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-14 09:35:01,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:35:01,144 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-14 09:35:01,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:35:01,145 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:01,145 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:35:01,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:35:01,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:35:01,346 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:01,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:01,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1318200786, now seen corresponding path program 1 times [2022-12-14 09:35:01,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:01,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883936959] [2022-12-14 09:35:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:01,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:35:01,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:01,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883936959] [2022-12-14 09:35:01,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883936959] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:35:01,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140888830] [2022-12-14 09:35:01,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:01,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:35:01,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:35:01,868 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:35:01,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc0d1f35-8ba1-4a96-a823-60c88e7a14f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:35:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:01,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-14 09:35:01,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:35:01,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 09:35:01,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:35:02,034 INFO L321 Elim1Store]: treesize reduction 26, result has 31.6 percent of original size [2022-12-14 09:35:02,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2022-12-14 09:35:02,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:35:02,181 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-12-14 09:35:02,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 23 [2022-12-14 09:35:02,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:35:02,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:35:04,272 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_109 Int) (|ULTIMATE.start_main_~acopy~0#1.offset| Int)) (let ((.cse0 (store (let ((.cse1 (* (- 4) |c_ULTIMATE.start_main_~i~0#1|)) (.cse2 (* 4 c_~SIZE~0))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base|) (+ .cse1 (- 4) .cse2 |ULTIMATE.start_main_~acopy~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse1 (- 4) .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|) v_ArrVal_109))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (select .cse0 (+ |ULTIMATE.start_main_~acopy~0#1.offset| 4))))) is different from false [2022-12-14 09:35:06,982 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:35:06,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 4450 treesize of output 3519 [2022-12-14 09:35:07,035 INFO L321 Elim1Store]: treesize reduction 39, result has 62.1 percent of original size [2022-12-14 09:35:07,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 5487 treesize of output 4913 [2022-12-14 09:35:07,068 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:35:07,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 5659 treesize of output 5215