./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/process_queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/process_queue.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ad9f94c1d10f7bc5f4235ca7c5dc51413b43a0e6c48b9e48da5d2e3e751252c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 19:55:05,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:55:05,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:55:05,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:55:05,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:55:05,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:55:05,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:55:05,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:55:05,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:55:05,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:55:05,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:55:05,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:55:05,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:55:05,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:55:05,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:55:05,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:55:05,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:55:05,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:55:05,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:55:05,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:55:05,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:55:05,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:55:05,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:55:05,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:55:05,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:55:05,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:55:05,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:55:05,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:55:05,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:55:05,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:55:05,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:55:05,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:55:05,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:55:05,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:55:05,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:55:05,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:55:05,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:55:05,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:55:05,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:55:05,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:55:05,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:55:05,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 19:55:05,844 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:55:05,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:55:05,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:55:05,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:55:05,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:55:05,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:55:05,847 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:55:05,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:55:05,847 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:55:05,848 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:55:05,849 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:55:05,849 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:55:05,849 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:55:05,850 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:55:05,850 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:55:05,850 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:55:05,850 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:55:05,851 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:55:05,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:55:05,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:55:05,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:55:05,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:55:05,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:55:05,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:55:05,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:55:05,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:55:05,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:55:05,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:55:05,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:55:05,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:55:05,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:55:05,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:55:05,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:55:05,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:55:05,857 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:55:05,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:55:05,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:55:05,857 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:55:05,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:55:05,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:55:05,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:55:05,858 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_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ad9f94c1d10f7bc5f4235ca7c5dc51413b43a0e6c48b9e48da5d2e3e751252c [2022-11-16 19:55:06,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:55:06,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:55:06,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:55:06,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:55:06,194 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:55:06,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/heap-data/process_queue.i [2022-11-16 19:55:06,273 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/data/3d66c2138/a936e521d2f349f593e16173e3a2e1fe/FLAGdd33c2ede [2022-11-16 19:55:06,881 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:55:06,882 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/sv-benchmarks/c/heap-data/process_queue.i [2022-11-16 19:55:06,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/data/3d66c2138/a936e521d2f349f593e16173e3a2e1fe/FLAGdd33c2ede [2022-11-16 19:55:07,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/data/3d66c2138/a936e521d2f349f593e16173e3a2e1fe [2022-11-16 19:55:07,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:55:07,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:55:07,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:55:07,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:55:07,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:55:07,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16805d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07, skipping insertion in model container [2022-11-16 19:55:07,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:55:07,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:55:07,638 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/sv-benchmarks/c/heap-data/process_queue.i[23979,23992] [2022-11-16 19:55:07,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:55:07,675 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:55:07,729 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/sv-benchmarks/c/heap-data/process_queue.i[23979,23992] [2022-11-16 19:55:07,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:55:07,775 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:55:07,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07 WrapperNode [2022-11-16 19:55:07,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:55:07,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:55:07,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:55:07,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:55:07,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,854 INFO L138 Inliner]: procedures = 127, calls = 32, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 111 [2022-11-16 19:55:07,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:55:07,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:55:07,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:55:07,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:55:07,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,899 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:55:07,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:55:07,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:55:07,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:55:07,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (1/1) ... [2022-11-16 19:55:07,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:55:07,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:55:07,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:55:07,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:55:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 19:55:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:55:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 19:55:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:55:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:55:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 19:55:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 19:55:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:55:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 19:55:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:55:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:55:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:55:08,109 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:55:08,111 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:55:08,379 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:55:08,500 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:55:08,500 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 19:55:08,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:55:08 BoogieIcfgContainer [2022-11-16 19:55:08,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:55:08,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:55:08,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:55:08,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:55:08,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:55:07" (1/3) ... [2022-11-16 19:55:08,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c80863b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:55:08, skipping insertion in model container [2022-11-16 19:55:08,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:55:07" (2/3) ... [2022-11-16 19:55:08,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c80863b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:55:08, skipping insertion in model container [2022-11-16 19:55:08,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:55:08" (3/3) ... [2022-11-16 19:55:08,521 INFO L112 eAbstractionObserver]: Analyzing ICFG process_queue.i [2022-11-16 19:55:08,543 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:55:08,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:55:08,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:55:08,611 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;@482a7fd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:55:08,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:55:08,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:08,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 19:55:08,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:55:08,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:55:08,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:55:08,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:55:08,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1991608940, now seen corresponding path program 1 times [2022-11-16 19:55:08,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:55:08,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037420861] [2022-11-16 19:55:08,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:55:08,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:55:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:55:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:55:09,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:55:09,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037420861] [2022-11-16 19:55:09,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037420861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:55:09,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:55:09,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:55:09,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63284184] [2022-11-16 19:55:09,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:55:09,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 19:55:09,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:55:09,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 19:55:09,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 19:55:09,806 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:10,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:55:10,450 INFO L93 Difference]: Finished difference Result 84 states and 130 transitions. [2022-11-16 19:55:10,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 19:55:10,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 19:55:10,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:55:10,476 INFO L225 Difference]: With dead ends: 84 [2022-11-16 19:55:10,489 INFO L226 Difference]: Without dead ends: 63 [2022-11-16 19:55:10,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 19:55:10,497 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 90 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 19:55:10,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 49 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 19:55:10,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-16 19:55:10,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 41. [2022-11-16 19:55:10,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.5) internal successors, (60), 40 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 60 transitions. [2022-11-16 19:55:10,542 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 60 transitions. Word has length 8 [2022-11-16 19:55:10,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:55:10,542 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 60 transitions. [2022-11-16 19:55:10,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:10,543 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2022-11-16 19:55:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 19:55:10,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:55:10,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:55:10,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:55:10,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:55:10,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:55:10,546 INFO L85 PathProgramCache]: Analyzing trace with hash -367164633, now seen corresponding path program 1 times [2022-11-16 19:55:10,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:55:10,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262724046] [2022-11-16 19:55:10,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:55:10,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:55:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:55:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:55:10,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:55:10,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262724046] [2022-11-16 19:55:10,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262724046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:55:10,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:55:10,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:55:10,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121489558] [2022-11-16 19:55:10,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:55:10,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:55:10,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:55:10,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:55:10,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:55:10,642 INFO L87 Difference]: Start difference. First operand 41 states and 60 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:10,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:55:10,953 INFO L93 Difference]: Finished difference Result 96 states and 141 transitions. [2022-11-16 19:55:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:55:10,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 19:55:10,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:55:10,956 INFO L225 Difference]: With dead ends: 96 [2022-11-16 19:55:10,956 INFO L226 Difference]: Without dead ends: 56 [2022-11-16 19:55:10,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:55:10,957 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 19:55:10,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 30 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 19:55:10,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-16 19:55:10,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 46. [2022-11-16 19:55:10,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 45 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2022-11-16 19:55:10,980 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 9 [2022-11-16 19:55:10,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:55:10,984 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2022-11-16 19:55:10,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:10,985 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2022-11-16 19:55:10,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:55:10,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:55:10,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:55:10,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:55:10,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:55:10,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:55:10,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1972519840, now seen corresponding path program 1 times [2022-11-16 19:55:10,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:55:10,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446435968] [2022-11-16 19:55:10,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:55:10,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:55:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:55:11,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 19:55:11,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:55:11,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446435968] [2022-11-16 19:55:11,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446435968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:55:11,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:55:11,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:55:11,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408434660] [2022-11-16 19:55:11,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:55:11,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:55:11,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:55:11,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:55:11,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:55:11,039 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:11,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:55:11,104 INFO L93 Difference]: Finished difference Result 98 states and 141 transitions. [2022-11-16 19:55:11,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:55:11,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 [2022-11-16 19:55:11,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:55:11,108 INFO L225 Difference]: With dead ends: 98 [2022-11-16 19:55:11,108 INFO L226 Difference]: Without dead ends: 69 [2022-11-16 19:55:11,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:55:11,112 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:55:11,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:55:11,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-16 19:55:11,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2022-11-16 19:55:11,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 94 transitions. [2022-11-16 19:55:11,124 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 94 transitions. Word has length 11 [2022-11-16 19:55:11,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:55:11,125 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 94 transitions. [2022-11-16 19:55:11,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:11,125 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 94 transitions. [2022-11-16 19:55:11,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:55:11,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:55:11,126 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:55:11,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 19:55:11,126 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:55:11,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:55:11,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1347617242, now seen corresponding path program 1 times [2022-11-16 19:55:11,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:55:11,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428519043] [2022-11-16 19:55:11,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:55:11,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:55:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:55:11,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:55:11,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:55:11,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428519043] [2022-11-16 19:55:11,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428519043] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:55:11,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393508357] [2022-11-16 19:55:11,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:55:11,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:55:11,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:55:11,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:55:11,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:55:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:55:11,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-16 19:55:11,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:55:11,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:55:12,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-16 19:55:12,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-16 19:55:12,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2022-11-16 19:55:12,147 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-16 19:55:12,151 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 15 treesize of output 15 [2022-11-16 19:55:12,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2022-11-16 19:55:12,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2022-11-16 19:55:12,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2022-11-16 19:55:12,363 INFO L321 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-11-16 19:55:12,364 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 40 [2022-11-16 19:55:12,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 12 [2022-11-16 19:55:12,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:55:12,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:55:12,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:55:12,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393508357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:55:12,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [509817779] [2022-11-16 19:55:12,689 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-16 19:55:12,689 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:55:12,693 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:55:12,699 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:55:12,700 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:55:12,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,771 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:55:12,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 19:55:12,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 19:55:12,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:55:12,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,967 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:55:12,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 19:55:12,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:12,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 39 [2022-11-16 19:55:13,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-11-16 19:55:13,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 19:55:13,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:13,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:55:13,324 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:55:14,346 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '672#(and (<= |ULTIMATE.start_append_to_queue_#in~n#1.offset| 0) (<= 0 |ULTIMATE.start_append_to_queue_#in~n#1.offset|) (<= 0 |ULTIMATE.start_append_to_queue_~n#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~new_id~0#1| 2147483648)) (<= |ULTIMATE.start_append_to_queue_#in~q#1.offset| 0) (<= |ULTIMATE.start_append_to_queue_~n#1.offset| 0) (= |ULTIMATE.start_main_~#queue~0#1.offset| 0) (<= |ULTIMATE.start_append_to_queue_~q#1.offset| 0) (not (<= 1 (select (select |#memory_int| |ULTIMATE.start_check_queue_~n~0#1.base|) (+ |ULTIMATE.start_check_queue_~n~0#1.offset| 4)))) (<= 0 |ULTIMATE.start_append_to_queue_#in~q#1.offset|) (or (not (= |ULTIMATE.start_check_queue_~n~0#1.offset| 0)) (not (= |ULTIMATE.start_check_queue_~n~0#1.base| 0))) (<= 0 |ULTIMATE.start_append_to_queue_#in~q#1.base|) (= 2 |ULTIMATE.start_main_~next_time~0#1|) (<= 0 |ULTIMATE.start_append_to_queue_~q#1.offset|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#queue~0#1.base|) (<= |ULTIMATE.start_main_~new_id~0#1| 2147483647) (<= 0 |ULTIMATE.start_append_to_queue_~q#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~new_process~0#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-16 19:55:14,347 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:55:14,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 19:55:14,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-16 19:55:14,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764331296] [2022-11-16 19:55:14,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 19:55:14,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 19:55:14,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:55:14,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 19:55:14,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-16 19:55:14,349 INFO L87 Difference]: Start difference. First operand 67 states and 94 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:14,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:55:14,889 INFO L93 Difference]: Finished difference Result 148 states and 208 transitions. [2022-11-16 19:55:14,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 19:55:14,890 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 19:55:14,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:55:14,891 INFO L225 Difference]: With dead ends: 148 [2022-11-16 19:55:14,891 INFO L226 Difference]: Without dead ends: 88 [2022-11-16 19:55:14,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2022-11-16 19:55:14,893 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 20 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 19:55:14,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 72 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 18 Unchecked, 0.4s Time] [2022-11-16 19:55:14,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-16 19:55:14,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 72. [2022-11-16 19:55:14,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:14,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 100 transitions. [2022-11-16 19:55:14,909 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 100 transitions. Word has length 11 [2022-11-16 19:55:14,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:55:14,909 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 100 transitions. [2022-11-16 19:55:14,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:14,910 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2022-11-16 19:55:14,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 19:55:14,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:55:14,911 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:55:14,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 19:55:15,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:55:15,117 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:55:15,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:55:15,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1839482293, now seen corresponding path program 1 times [2022-11-16 19:55:15,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:55:15,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034380903] [2022-11-16 19:55:15,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:55:15,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:55:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:55:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 19:55:15,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:55:15,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034380903] [2022-11-16 19:55:15,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034380903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:55:15,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:55:15,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:55:15,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995024618] [2022-11-16 19:55:15,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:55:15,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:55:15,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:55:15,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:55:15,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:55:15,310 INFO L87 Difference]: Start difference. First operand 72 states and 100 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:15,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:55:15,460 INFO L93 Difference]: Finished difference Result 163 states and 227 transitions. [2022-11-16 19:55:15,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:55:15,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-16 19:55:15,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:55:15,462 INFO L225 Difference]: With dead ends: 163 [2022-11-16 19:55:15,462 INFO L226 Difference]: Without dead ends: 103 [2022-11-16 19:55:15,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:55:15,464 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 20 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:55:15,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 32 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:55:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-16 19:55:15,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 91. [2022-11-16 19:55:15,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 90 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:15,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 122 transitions. [2022-11-16 19:55:15,480 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 122 transitions. Word has length 16 [2022-11-16 19:55:15,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:55:15,480 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 122 transitions. [2022-11-16 19:55:15,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:15,481 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 122 transitions. [2022-11-16 19:55:15,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 19:55:15,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:55:15,482 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:55:15,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 19:55:15,482 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:55:15,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:55:15,483 INFO L85 PathProgramCache]: Analyzing trace with hash 66708409, now seen corresponding path program 1 times [2022-11-16 19:55:15,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:55:15,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412925766] [2022-11-16 19:55:15,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:55:15,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:55:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:55:17,393 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:55:17,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:55:17,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412925766] [2022-11-16 19:55:17,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412925766] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:55:17,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887406945] [2022-11-16 19:55:17,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:55:17,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:55:17,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:55:17,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:55:17,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 19:55:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:55:17,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 111 conjunts are in the unsatisfiable core [2022-11-16 19:55:17,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:55:17,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:55:17,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 28 [2022-11-16 19:55:17,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:17,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:17,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-16 19:55:17,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:17,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:17,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-16 19:55:17,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-16 19:55:17,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-16 19:55:17,679 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-16 19:55:17,680 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 15 treesize of output 15 [2022-11-16 19:55:17,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 19:55:18,156 INFO L321 Elim1Store]: treesize reduction 47, result has 19.0 percent of original size [2022-11-16 19:55:18,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 222 treesize of output 222 [2022-11-16 19:55:18,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 167 [2022-11-16 19:55:18,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 204 [2022-11-16 19:55:18,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 108 [2022-11-16 19:55:18,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 97 [2022-11-16 19:55:18,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:18,476 INFO L321 Elim1Store]: treesize reduction 10, result has 69.7 percent of original size [2022-11-16 19:55:18,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 179 treesize of output 179 [2022-11-16 19:55:18,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 134 [2022-11-16 19:55:18,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 112 [2022-11-16 19:55:18,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:18,528 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:18,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 64 treesize of output 44 [2022-11-16 19:55:18,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-16 19:55:18,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 19:55:18,670 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 11 treesize of output 7 [2022-11-16 19:55:18,691 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:55:18,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:55:18,938 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select (select |c_#memory_int| |c_ULTIMATE.start_choose_next_~node~0#1.base|) (+ |c_ULTIMATE.start_choose_next_~node~0#1.offset| 4)) 1))) (and (or .cse0 (and (forall ((v_ArrVal_324 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_choose_next_~node~0#1.base| v_ArrVal_324) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|) 0)) (forall ((v_ArrVal_321 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_choose_next_~node~0#1.base| v_ArrVal_321) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|) 0)))) (or (not .cse0) (let ((.cse2 (= |c_ULTIMATE.start_choose_next_~prev~0#1.base| 0)) (.cse3 (= |c_ULTIMATE.start_choose_next_~prev~0#1.offset| 0))) (and (or (let ((.cse1 (+ |c_ULTIMATE.start_choose_next_~node~0#1.offset| 8))) (and (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_choose_next_~q#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_choose_next_~q#1.base|) |c_ULTIMATE.start_choose_next_~q#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_choose_next_~node~0#1.base|) .cse1))) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|) 0) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_choose_next_~q#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_choose_next_~q#1.base|) |c_ULTIMATE.start_choose_next_~q#1.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_choose_next_~node~0#1.base|) .cse1))) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|) 0))) (not .cse2) (not .cse3)) (or (and .cse2 .cse3) (and (forall ((v_ArrVal_314 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_choose_next_~prev~0#1.base| v_ArrVal_314) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|) 0)) (forall ((v_ArrVal_320 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_choose_next_~prev~0#1.base| v_ArrVal_320) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|) 0))))))))) is different from false [2022-11-16 19:55:18,970 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|)) (.cse3 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|))) (let ((.cse0 (= (select (select |c_#memory_int| .cse1) (+ .cse3 4)) 1))) (and (or .cse0 (and (forall ((v_ArrVal_321 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_321) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|) 0)) (forall ((v_ArrVal_324 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_324) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|) 0)))) (or (let ((.cse2 (+ .cse3 8))) (and (= (select (select |c_#memory_$Pointer$.offset| .cse1) .cse2) 0) (= (select (select |c_#memory_$Pointer$.base| .cse1) .cse2) 0))) (not .cse0))))) is different from false [2022-11-16 19:55:19,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 88 [2022-11-16 19:55:19,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 102 [2022-11-16 19:55:19,518 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:19,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 35 [2022-11-16 19:55:19,534 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 50 treesize of output 48 [2022-11-16 19:55:19,551 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 50 treesize of output 48 [2022-11-16 19:55:19,564 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 44 treesize of output 42 [2022-11-16 19:55:19,576 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 55 treesize of output 53 [2022-11-16 19:55:19,588 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 64 treesize of output 62 [2022-11-16 19:55:19,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 60 [2022-11-16 19:55:19,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-11-16 19:55:19,619 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 29 treesize of output 27 [2022-11-16 19:55:19,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2022-11-16 19:55:19,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:19,807 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-16 19:55:19,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887406945] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:55:19,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [497140715] [2022-11-16 19:55:19,810 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-16 19:55:19,810 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:55:19,810 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:55:19,810 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:55:19,811 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:55:19,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,838 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:55:19,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 19:55:19,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 19:55:19,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:55:19,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,963 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:55:19,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 19:55:19,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:19,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 39 [2022-11-16 19:55:20,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-11-16 19:55:20,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 19:55:20,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:20,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:55:20,474 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:55:20,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 269 treesize of output 240 [2022-11-16 19:55:20,560 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:55:20,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 180 [2022-11-16 19:55:20,624 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-16 19:55:20,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 119 [2022-11-16 19:55:20,712 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:20,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 31 [2022-11-16 19:55:20,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:20,753 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:20,753 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 28 treesize of output 28 [2022-11-16 19:55:20,828 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:20,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 52 treesize of output 43 [2022-11-16 19:55:20,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:20,862 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:20,863 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 40 treesize of output 44 [2022-11-16 19:55:20,915 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:20,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 59 treesize of output 48 [2022-11-16 19:55:20,931 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 25 treesize of output 17 [2022-11-16 19:55:20,957 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:20,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 56 [2022-11-16 19:55:21,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:55:21,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:55:21,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-16 19:55:21,306 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:55:21,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 154 [2022-11-16 19:55:21,398 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:55:21,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 124 [2022-11-16 19:55:21,480 INFO L321 Elim1Store]: treesize reduction 50, result has 43.8 percent of original size [2022-11-16 19:55:21,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 129 [2022-11-16 19:55:21,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:21,556 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:21,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 57 treesize of output 44 [2022-11-16 19:55:21,572 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 11 treesize of output 7 [2022-11-16 19:55:21,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:21,588 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 41 treesize of output 25 [2022-11-16 19:55:21,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:21,631 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:21,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 40 treesize of output 31 [2022-11-16 19:55:21,646 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 11 treesize of output 7 [2022-11-16 19:55:21,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:21,660 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 28 treesize of output 20 [2022-11-16 19:55:21,908 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:21,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 44 treesize of output 35 [2022-11-16 19:55:21,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:21,943 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:21,944 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 32 treesize of output 36 [2022-11-16 19:55:22,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:22,125 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:55:22,126 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 167 treesize of output 159 [2022-11-16 19:55:22,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:22,205 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:55:22,205 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 163 treesize of output 155 [2022-11-16 19:55:22,454 INFO L321 Elim1Store]: treesize reduction 54, result has 49.1 percent of original size [2022-11-16 19:55:22,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 155 treesize of output 200 [2022-11-16 19:55:22,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:22,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:22,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:22,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:22,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:22,609 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:55:22,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 187 treesize of output 166 [2022-11-16 19:55:22,812 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-16 19:55:22,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 140 treesize of output 176 [2022-11-16 19:55:22,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:22,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:22,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:22,980 INFO L321 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2022-11-16 19:55:22,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 181 treesize of output 190 [2022-11-16 19:55:23,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:23,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:23,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:23,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:23,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 33 [2022-11-16 19:55:23,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:23,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:23,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:23,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:23,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 33 [2022-11-16 19:55:34,381 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:55:34,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 269 treesize of output 240 [2022-11-16 19:55:34,456 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:55:34,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 180 [2022-11-16 19:55:34,500 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-16 19:55:34,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 119 [2022-11-16 19:55:34,555 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:34,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 31 [2022-11-16 19:55:34,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:34,594 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:34,594 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 28 treesize of output 28 [2022-11-16 19:55:34,628 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:34,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 33 [2022-11-16 19:55:34,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-16 19:55:34,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:34,660 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 30 treesize of output 34 [2022-11-16 19:55:34,729 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 19:55:34,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 33 [2022-11-16 19:55:34,739 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 33 treesize of output 25 [2022-11-16 19:55:34,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:55:34,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-16 19:55:34,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:55:34,995 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:55:34,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 154 [2022-11-16 19:55:35,091 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:55:35,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 124 [2022-11-16 19:55:35,175 INFO L321 Elim1Store]: treesize reduction 50, result has 43.8 percent of original size [2022-11-16 19:55:35,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 129 [2022-11-16 19:55:35,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,252 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:35,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 57 treesize of output 44 [2022-11-16 19:55:35,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 19:55:35,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,278 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 41 treesize of output 25 [2022-11-16 19:55:35,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,345 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:35,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 57 treesize of output 44 [2022-11-16 19:55:35,359 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 11 treesize of output 7 [2022-11-16 19:55:35,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,371 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 41 treesize of output 25 [2022-11-16 19:55:35,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,503 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:35,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 34 treesize of output 25 [2022-11-16 19:55:35,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:35,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,522 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 22 treesize of output 16 [2022-11-16 19:55:35,538 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:55:35,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,636 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:55:35,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:55:35,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,656 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 19 [2022-11-16 19:55:35,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,666 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 19 treesize of output 13 [2022-11-16 19:55:35,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:55:35,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-11-16 19:55:35,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,740 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:55:35,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-11-16 19:55:35,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:55:35,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,808 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:55:35,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:55:35,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:35,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:55:35,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:55:35,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:35,863 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:55:36,046 INFO L321 Elim1Store]: treesize reduction 92, result has 27.6 percent of original size [2022-11-16 19:55:36,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 325 treesize of output 304 [2022-11-16 19:55:36,148 INFO L321 Elim1Store]: treesize reduction 80, result has 27.3 percent of original size [2022-11-16 19:55:36,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 299 treesize of output 269 [2022-11-16 19:55:36,195 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-16 19:55:36,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 119 [2022-11-16 19:55:36,263 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:36,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 40 treesize of output 29 [2022-11-16 19:55:36,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-11-16 19:55:36,298 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:36,298 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 26 treesize of output 28 [2022-11-16 19:55:36,372 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:36,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 61 treesize of output 50 [2022-11-16 19:55:36,384 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 27 treesize of output 19 [2022-11-16 19:55:36,410 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:36,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 58 [2022-11-16 19:55:36,509 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:36,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 52 treesize of output 43 [2022-11-16 19:55:36,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:36,535 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:36,535 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 40 treesize of output 44 [2022-11-16 19:55:36,707 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:55:36,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 154 [2022-11-16 19:55:36,788 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:55:36,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 124 [2022-11-16 19:55:36,862 INFO L321 Elim1Store]: treesize reduction 50, result has 43.8 percent of original size [2022-11-16 19:55:36,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 129 [2022-11-16 19:55:36,952 INFO L321 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-11-16 19:55:36,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 56 [2022-11-16 19:55:36,965 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 36 treesize of output 24 [2022-11-16 19:55:36,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:36,983 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 36 treesize of output 20 [2022-11-16 19:55:37,004 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:55:37,004 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 36 treesize of output 20 [2022-11-16 19:55:37,016 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 25 treesize of output 17 [2022-11-16 19:55:37,107 INFO L321 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-11-16 19:55:37,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 56 [2022-11-16 19:55:37,120 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 11 treesize of output 7 [2022-11-16 19:55:37,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:37,134 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 36 treesize of output 20 [2022-11-16 19:55:37,153 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:37,154 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 41 treesize of output 33 [2022-11-16 19:55:37,456 INFO L321 Elim1Store]: treesize reduction 86, result has 35.3 percent of original size [2022-11-16 19:55:37,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 300 treesize of output 359 [2022-11-16 19:55:37,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:37,880 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 19:55:37,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:37,910 INFO L321 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2022-11-16 19:55:37,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:37,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:37,938 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 19:55:37,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:38,003 INFO L321 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2022-11-16 19:55:38,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:38,061 INFO L321 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2022-11-16 19:55:38,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:38,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:38,080 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 19:55:38,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:38,138 INFO L321 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2022-11-16 19:55:38,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 14 [2022-11-16 19:55:38,173 INFO L321 Elim1Store]: treesize reduction 123, result has 0.8 percent of original size [2022-11-16 19:55:38,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 14 [2022-11-16 19:55:38,211 INFO L321 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2022-11-16 19:55:38,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 30 [2022-11-16 19:55:38,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 19:55:38,394 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:38,394 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 27 treesize of output 31 [2022-11-16 19:55:38,423 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:38,423 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 27 treesize of output 31 [2022-11-16 19:55:38,443 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:38,444 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 27 treesize of output 31 [2022-11-16 19:55:38,474 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:38,475 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 27 treesize of output 31 [2022-11-16 19:55:38,615 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:38,616 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 32 treesize of output 36 [2022-11-16 19:55:38,640 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:38,641 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 32 treesize of output 36 [2022-11-16 19:55:38,675 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:38,676 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 27 treesize of output 31 [2022-11-16 19:55:38,730 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:38,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 44 treesize of output 35 [2022-11-16 19:55:38,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:38,752 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:38,753 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 32 treesize of output 36 [2022-11-16 19:55:38,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-16 19:55:38,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:55:38,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:55:38,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:38,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:38,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:38,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-11-16 19:55:38,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:38,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:38,961 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:55:38,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-11-16 19:55:38,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:38,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:38,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:38,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:38,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:39,022 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:55:39,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:55:39,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:39,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:55:39,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:39,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:39,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:39,065 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:55:39,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:55:39,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:55:39,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:39,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:39,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:39,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:39,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:39,144 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:55:39,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:55:39,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:39,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:55:39,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:39,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:39,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:39,194 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:55:39,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:55:39,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:55:39,394 INFO L321 Elim1Store]: treesize reduction 92, result has 27.6 percent of original size [2022-11-16 19:55:39,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 325 treesize of output 304 [2022-11-16 19:55:39,484 INFO L321 Elim1Store]: treesize reduction 80, result has 27.3 percent of original size [2022-11-16 19:55:39,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 293 treesize of output 267 [2022-11-16 19:55:39,531 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-16 19:55:39,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 119 [2022-11-16 19:55:39,644 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:39,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 52 treesize of output 43 [2022-11-16 19:55:39,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:39,673 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:39,674 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 40 treesize of output 44 [2022-11-16 19:55:39,728 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:39,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 61 treesize of output 50 [2022-11-16 19:55:39,740 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 27 treesize of output 19 [2022-11-16 19:55:39,765 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:39,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 58 [2022-11-16 19:55:39,820 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:39,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 59 treesize of output 48 [2022-11-16 19:55:39,831 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 25 treesize of output 17 [2022-11-16 19:55:39,854 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:39,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 56 [2022-11-16 19:55:40,088 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:55:40,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 154 [2022-11-16 19:55:40,170 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:55:40,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 124 [2022-11-16 19:55:40,250 INFO L321 Elim1Store]: treesize reduction 50, result has 43.8 percent of original size [2022-11-16 19:55:40,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 129 [2022-11-16 19:55:40,330 INFO L321 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-11-16 19:55:40,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 44 treesize of output 47 [2022-11-16 19:55:40,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 19:55:40,367 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:40,367 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 32 treesize of output 32 [2022-11-16 19:55:40,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:40,382 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 27 treesize of output 19 [2022-11-16 19:55:40,444 INFO L321 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-11-16 19:55:40,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 44 treesize of output 47 [2022-11-16 19:55:40,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 19:55:40,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:40,471 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 32 treesize of output 24 [2022-11-16 19:55:40,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:40,482 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 27 treesize of output 19 [2022-11-16 19:55:40,648 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:55:40,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 44 treesize of output 35 [2022-11-16 19:55:40,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:40,671 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:40,671 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 32 treesize of output 36 [2022-11-16 19:55:40,782 INFO L321 Elim1Store]: treesize reduction 86, result has 35.3 percent of original size [2022-11-16 19:55:40,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 348 treesize of output 407 [2022-11-16 19:55:40,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:55:41,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:41,177 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 19:55:41,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:41,213 INFO L321 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2022-11-16 19:55:41,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:41,253 INFO L321 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2022-11-16 19:55:41,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:41,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:41,306 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 19:55:41,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:41,340 INFO L321 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2022-11-16 19:55:41,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:41,368 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 19:55:41,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 38 treesize of output 11 [2022-11-16 19:55:41,422 INFO L321 Elim1Store]: treesize reduction 123, result has 0.8 percent of original size [2022-11-16 19:55:41,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 14 [2022-11-16 19:55:41,463 INFO L321 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2022-11-16 19:55:41,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 30 [2022-11-16 19:55:41,529 INFO L321 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2022-11-16 19:55:41,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 14 [2022-11-16 19:55:41,612 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:41,613 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 32 treesize of output 36 [2022-11-16 19:55:41,688 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:41,688 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 27 treesize of output 31 [2022-11-16 19:55:41,733 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:41,733 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 27 treesize of output 31 [2022-11-16 19:55:41,755 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:41,755 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 27 treesize of output 31 [2022-11-16 19:55:41,817 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:41,817 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 27 treesize of output 31 [2022-11-16 19:55:41,835 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:41,835 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 27 treesize of output 31 [2022-11-16 19:55:41,892 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:41,892 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 32 treesize of output 36 [2022-11-16 19:55:41,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 19:55:41,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:55:41,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-16 19:55:41,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:55:42,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:55:42,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:42,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:42,084 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:55:42,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:55:42,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:42,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:42,098 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 19 [2022-11-16 19:55:42,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,106 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 19 treesize of output 13 [2022-11-16 19:55:42,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:42,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:42,176 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:55:42,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:55:42,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:42,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:55:42,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:55:42,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,233 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:55:42,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:55:42,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-11-16 19:55:42,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:42,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:42,299 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:55:42,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-11-16 19:55:42,378 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:55:42,954 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1444#(and (= |ULTIMATE.start_main_~#queue~0#1.offset| 0) (not (<= 1 (select (select |#memory_int| |ULTIMATE.start_check_queue_~n~0#1.base|) (+ |ULTIMATE.start_check_queue_~n~0#1.offset| 4)))) (or (not (= |ULTIMATE.start_check_queue_~n~0#1.offset| 0)) (not (= |ULTIMATE.start_check_queue_~n~0#1.base| 0))) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#queue~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-16 19:55:42,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:55:42,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 19:55:42,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2022-11-16 19:55:42,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961569779] [2022-11-16 19:55:42,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 19:55:42,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 19:55:42,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:55:42,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 19:55:42,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=925, Unknown=2, NotChecked=126, Total=1190 [2022-11-16 19:55:42,956 INFO L87 Difference]: Start difference. First operand 91 states and 122 transitions. Second operand has 28 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 27 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:55:45,365 INFO L93 Difference]: Finished difference Result 283 states and 387 transitions. [2022-11-16 19:55:45,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-16 19:55:45,366 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 27 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 19:55:45,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:55:45,367 INFO L225 Difference]: With dead ends: 283 [2022-11-16 19:55:45,367 INFO L226 Difference]: Without dead ends: 200 [2022-11-16 19:55:45,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 31 SyntacticMatches, 10 SemanticMatches, 63 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=609, Invalid=3299, Unknown=6, NotChecked=246, Total=4160 [2022-11-16 19:55:45,370 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 244 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 19:55:45,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 149 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 278 Invalid, 0 Unknown, 260 Unchecked, 0.9s Time] [2022-11-16 19:55:45,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-16 19:55:45,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 129. [2022-11-16 19:55:45,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.3515625) internal successors, (173), 128 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:45,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 173 transitions. [2022-11-16 19:55:45,404 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 173 transitions. Word has length 19 [2022-11-16 19:55:45,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:55:45,404 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 173 transitions. [2022-11-16 19:55:45,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 27 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:55:45,405 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 173 transitions. [2022-11-16 19:55:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 19:55:45,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:55:45,405 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-16 19:55:45,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 19:55:45,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:55:45,612 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:55:45,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:55:45,612 INFO L85 PathProgramCache]: Analyzing trace with hash -908121805, now seen corresponding path program 1 times [2022-11-16 19:55:45,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:55:45,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717018030] [2022-11-16 19:55:45,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:55:45,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:55:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:55:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:55:47,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:55:47,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717018030] [2022-11-16 19:55:47,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717018030] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:55:47,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000105494] [2022-11-16 19:55:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:55:47,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:55:47,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:55:47,305 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:55:47,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 19:55:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:55:47,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 131 conjunts are in the unsatisfiable core [2022-11-16 19:55:47,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:55:47,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:55:47,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-16 19:55:47,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-16 19:55:47,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-16 19:55:47,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-16 19:55:47,571 INFO L321 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2022-11-16 19:55:47,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2022-11-16 19:55:47,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-16 19:55:47,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 47 [2022-11-16 19:55:47,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 38 [2022-11-16 19:55:47,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 34 [2022-11-16 19:55:47,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-11-16 19:55:47,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2022-11-16 19:55:47,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:47,928 INFO L321 Elim1Store]: treesize reduction 4, result has 84.6 percent of original size [2022-11-16 19:55:47,928 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 1 case distinctions, treesize of input 34 treesize of output 32 [2022-11-16 19:55:47,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2022-11-16 19:55:48,093 INFO L321 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-11-16 19:55:48,093 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 53 [2022-11-16 19:55:48,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:48,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 12 [2022-11-16 19:55:48,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 19:55:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:55:48,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:55:48,326 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_486 Int) (v_ArrVal_481 (Array Int Int)) (v_ArrVal_483 (Array Int Int)) (v_ArrVal_474 (Array Int Int)) (v_ArrVal_484 (Array Int Int)) (|v_ULTIMATE.start_append_to_queue_~n#1.offset_8| Int) (v_ArrVal_488 (Array Int Int))) (or (< 0 (let ((.cse1 (+ |v_ULTIMATE.start_append_to_queue_~n#1.offset_8| 8))) (select (select (store (store |c_#memory_int| v_ArrVal_486 v_ArrVal_483) |c_ULTIMATE.start_main_~#queue~0#1.base| v_ArrVal_488) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| v_ArrVal_486 (store v_ArrVal_474 .cse1 (select (select (store |c_#memory_$Pointer$.base| v_ArrVal_486 v_ArrVal_474) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|))))) (store .cse0 |c_ULTIMATE.start_main_~#queue~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset| v_ArrVal_486))) v_ArrVal_486) .cse1)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| v_ArrVal_486 (store v_ArrVal_484 .cse1 (select (select (store |c_#memory_$Pointer$.offset| v_ArrVal_486 v_ArrVal_484) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|))) |c_ULTIMATE.start_main_~#queue~0#1.base| (store (select (store |c_#memory_$Pointer$.offset| v_ArrVal_486 v_ArrVal_481) |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset| |v_ULTIMATE.start_append_to_queue_~n#1.offset_8|)) v_ArrVal_486) .cse1) 4)))) (not (= (select |c_#valid| v_ArrVal_486) 0)) (not (< v_ArrVal_486 |c_#StackHeapBarrier|)))) is different from false [2022-11-16 19:55:48,559 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:48,559 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 505 treesize of output 504 [2022-11-16 19:55:48,572 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 414 treesize of output 342 [2022-11-16 19:55:48,584 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 188 treesize of output 152 [2022-11-16 19:55:49,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 326 treesize of output 324 [2022-11-16 19:55:49,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 467 treesize of output 463 [2022-11-16 19:55:49,438 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 [2022-11-16 19:55:49,461 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:49,462 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 456 treesize of output 457 [2022-11-16 19:55:49,494 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:55:49,494 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 467 treesize of output 468 [2022-11-16 19:55:49,511 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 465 treesize of output 459 [2022-11-16 19:55:49,521 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 472 treesize of output 468 [2022-11-16 19:55:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2022-11-16 19:55:49,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000105494] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:55:49,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [883995360] [2022-11-16 19:55:49,711 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-16 19:55:49,712 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:55:49,712 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:55:49,712 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:55:49,712 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:55:49,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,738 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:55:49,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 19:55:49,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 19:55:49,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:55:49,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,846 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 19:55:49,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-16 19:55:49,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:55:49,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,930 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:55:49,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 19:55:49,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 39 [2022-11-16 19:55:49,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:49,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-11-16 19:55:50,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:50,267 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:55:50,267 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 167 treesize of output 159 [2022-11-16 19:55:50,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:50,347 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:55:50,348 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 163 treesize of output 155 [2022-11-16 19:55:50,630 INFO L321 Elim1Store]: treesize reduction 54, result has 49.1 percent of original size [2022-11-16 19:55:50,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 155 treesize of output 200 [2022-11-16 19:55:50,971 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-16 19:55:50,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 144 treesize of output 180 [2022-11-16 19:55:51,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,171 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:55:51,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 160 [2022-11-16 19:55:51,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:55:51,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,296 INFO L321 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2022-11-16 19:55:51,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 181 treesize of output 190 [2022-11-16 19:55:51,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 33 [2022-11-16 19:55:51,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:55:51,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 33 [2022-11-16 19:56:17,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:56:17,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-11-16 19:56:17,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:17,531 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:56:17,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-11-16 19:56:17,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:56:17,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:17,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:17,601 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:56:17,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:56:17,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:17,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:56:17,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:56:17,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,651 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:56:17,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:17,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:17,731 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:56:17,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:56:17,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:17,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:56:17,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:56:17,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:17,796 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:56:18,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:18,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:18,085 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:56:18,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:56:18,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:18,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:18,103 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 19 [2022-11-16 19:56:18,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,113 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 19 treesize of output 13 [2022-11-16 19:56:18,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-11-16 19:56:18,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:18,180 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:56:18,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-11-16 19:56:18,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:56:18,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:56:18,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:18,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:18,269 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:56:18,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:56:18,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:18,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:18,289 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 19 [2022-11-16 19:56:18,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:18,300 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 19 treesize of output 13 [2022-11-16 19:56:18,545 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:56:19,868 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2196#(and (<= |ULTIMATE.start_append_to_queue_#in~n#1.offset| 0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_append_to_queue_#in~n#1.offset|) (<= 0 |ULTIMATE.start_append_to_queue_~n#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~new_id~0#1| 2147483648)) (<= 2 |ULTIMATE.start_main_~next_time~0#1|) (<= |ULTIMATE.start_append_to_queue_#in~q#1.offset| 0) (<= |ULTIMATE.start_append_to_queue_~n#1.offset| 0) (<= |ULTIMATE.start_append_to_queue_~q#1.offset| 0) (not (<= 1 (select (select |#memory_int| |ULTIMATE.start_check_queue_~n~0#1.base|) (+ |ULTIMATE.start_check_queue_~n~0#1.offset| 4)))) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_append_to_queue_#in~q#1.offset|) (<= 0 |ULTIMATE.start_main_~#queue~0#1.offset|) (<= |ULTIMATE.start_main_~new_process~0#1.offset| 0) (or (not (= |ULTIMATE.start_check_queue_~n~0#1.offset| 0)) (not (= |ULTIMATE.start_check_queue_~n~0#1.base| 0))) (<= 0 |ULTIMATE.start_append_to_queue_#in~q#1.base|) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_append_to_queue_~q#1.offset|) (<= |ULTIMATE.start_main_~next_time~0#1| 1001) (<= |ULTIMATE.start_main_~#queue~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#queue~0#1.base|) (<= |ULTIMATE.start_main_~new_id~0#1| 2147483647) (<= 0 |ULTIMATE.start_append_to_queue_~q#1.base|) (<= 0 |ULTIMATE.start_main_~new_process~0#1.offset|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-16 19:56:19,868 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:56:19,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 19:56:19,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 25 [2022-11-16 19:56:19,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043989458] [2022-11-16 19:56:19,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 19:56:19,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 19:56:19,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:56:19,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 19:56:19,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=951, Unknown=4, NotChecked=62, Total=1122 [2022-11-16 19:56:19,871 INFO L87 Difference]: Start difference. First operand 129 states and 173 transitions. Second operand has 26 states, 26 states have (on average 2.076923076923077) internal successors, (54), 25 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:56:22,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:56:22,929 INFO L93 Difference]: Finished difference Result 249 states and 339 transitions. [2022-11-16 19:56:22,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 19:56:22,930 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.076923076923077) internal successors, (54), 25 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 19:56:22,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:56:22,931 INFO L225 Difference]: With dead ends: 249 [2022-11-16 19:56:22,931 INFO L226 Difference]: Without dead ends: 140 [2022-11-16 19:56:22,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=212, Invalid=1748, Unknown=24, NotChecked=86, Total=2070 [2022-11-16 19:56:22,932 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 49 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 137 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 19:56:22,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 85 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 137 Unchecked, 0.4s Time] [2022-11-16 19:56:22,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-16 19:56:22,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 133. [2022-11-16 19:56:22,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.3484848484848484) internal successors, (178), 132 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:56:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 178 transitions. [2022-11-16 19:56:22,966 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 178 transitions. Word has length 19 [2022-11-16 19:56:22,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:56:22,967 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 178 transitions. [2022-11-16 19:56:22,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.076923076923077) internal successors, (54), 25 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:56:22,967 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 178 transitions. [2022-11-16 19:56:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 19:56:22,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:56:22,969 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:56:22,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 19:56:23,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:56:23,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:56:23,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:56:23,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1991749930, now seen corresponding path program 2 times [2022-11-16 19:56:23,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:56:23,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995846360] [2022-11-16 19:56:23,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:56:23,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:56:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:56:24,364 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:56:24,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:56:24,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995846360] [2022-11-16 19:56:24,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995846360] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:56:24,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421158563] [2022-11-16 19:56:24,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 19:56:24,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:56:24,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:56:24,367 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:56:24,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 19:56:24,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 19:56:24,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:56:24,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 83 conjunts are in the unsatisfiable core [2022-11-16 19:56:24,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:56:24,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:56:24,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:24,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:24,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2022-11-16 19:56:24,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:24,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:24,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2022-11-16 19:56:24,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 28 [2022-11-16 19:56:24,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2022-11-16 19:56:24,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-16 19:56:24,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 19:56:24,683 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-16 19:56:24,683 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 15 treesize of output 15 [2022-11-16 19:56:24,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 19:56:24,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 19:56:25,002 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-16 19:56:25,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 206 treesize of output 212 [2022-11-16 19:56:25,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 194 [2022-11-16 19:56:25,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 138 [2022-11-16 19:56:25,081 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:25,082 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 461 treesize of output 449 [2022-11-16 19:56:25,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:25,162 INFO L321 Elim1Store]: treesize reduction 85, result has 39.3 percent of original size [2022-11-16 19:56:25,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 113 treesize of output 183 [2022-11-16 19:56:25,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:25,197 INFO L321 Elim1Store]: treesize reduction 23, result has 32.4 percent of original size [2022-11-16 19:56:25,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 84 [2022-11-16 19:56:25,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:25,476 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 17 treesize of output 7 [2022-11-16 19:56:25,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:25,544 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 19:56:25,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 232 treesize of output 188 [2022-11-16 19:56:25,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:25,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 57 [2022-11-16 19:56:25,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:25,602 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 15 treesize of output 7 [2022-11-16 19:56:25,626 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 15 treesize of output 11 [2022-11-16 19:56:25,635 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 11 treesize of output 7 [2022-11-16 19:56:25,642 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 19:56:25,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:56:25,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 19:56:25,837 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (= |c_ULTIMATE.start_choose_next_~prev~0#1.base| 0)) (.cse4 (= |c_ULTIMATE.start_choose_next_~prev~0#1.offset| 0))) (let ((.cse1 (and .cse5 .cse4)) (.cse2 (not .cse5)) (.cse0 (+ |c_ULTIMATE.start_choose_next_~node~0#1.offset| 8)) (.cse3 (not .cse4))) (and (= (select (select |c_#memory_int| |c_ULTIMATE.start_choose_next_~node~0#1.base|) (+ |c_ULTIMATE.start_choose_next_~node~0#1.offset| 4)) 1) (or (forall ((v_ArrVal_653 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_choose_next_~prev~0#1.base| v_ArrVal_653) |c_ULTIMATE.start_choose_next_~node~0#1.base|) .cse0) 0)) .cse1) (or .cse2 (forall ((v_ArrVal_661 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_choose_next_~q#1.base| v_ArrVal_661) |c_ULTIMATE.start_choose_next_~node~0#1.base|) .cse0) 0)) .cse3) (or (forall ((v_ArrVal_657 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_choose_next_~prev~0#1.base| v_ArrVal_657) |c_ULTIMATE.start_choose_next_~node~0#1.base|) .cse0) 0)) .cse1) (or .cse2 (forall ((v_ArrVal_660 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_choose_next_~q#1.base| v_ArrVal_660) |c_ULTIMATE.start_choose_next_~node~0#1.base|) .cse0) 0)) .cse3)))) is different from false [2022-11-16 19:56:25,856 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#queue~0#1.base|) |c_ULTIMATE.start_main_~#queue~0#1.offset|)) (.cse2 (+ .cse1 8))) (and (= (select (select |c_#memory_int| .cse0) (+ .cse1 4)) 1) (forall ((v_ArrVal_661 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#queue~0#1.base| v_ArrVal_661) .cse0) .cse2) 0)) (forall ((v_ArrVal_660 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#queue~0#1.base| v_ArrVal_660) .cse0) .cse2) 0))))) is different from false [2022-11-16 19:56:25,953 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:25,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 82 [2022-11-16 19:56:25,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 70 [2022-11-16 19:56:25,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 63 [2022-11-16 19:56:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 4 not checked. [2022-11-16 19:56:30,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421158563] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:56:30,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1848012047] [2022-11-16 19:56:30,336 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-16 19:56:30,337 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:56:30,337 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:56:30,337 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:56:30,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:56:30,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,363 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 19:56:30,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-16 19:56:30,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,388 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:56:30,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 19:56:30,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,486 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:56:30,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 43 [2022-11-16 19:56:30,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,502 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:56:30,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 54 [2022-11-16 19:56:30,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,561 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:56:30,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 19:56:30,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:56:30,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 19:56:30,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:30,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:56:30,917 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:56:30,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 269 treesize of output 240 [2022-11-16 19:56:31,007 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:56:31,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 180 [2022-11-16 19:56:31,054 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-16 19:56:31,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 119 [2022-11-16 19:56:31,109 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:31,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 31 [2022-11-16 19:56:31,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:31,148 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:31,148 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 28 treesize of output 28 [2022-11-16 19:56:31,204 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:31,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 74 treesize of output 61 [2022-11-16 19:56:31,221 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 38 treesize of output 26 [2022-11-16 19:56:31,254 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:31,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 79 [2022-11-16 19:56:31,318 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 19:56:31,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 33 [2022-11-16 19:56:31,330 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 33 treesize of output 25 [2022-11-16 19:56:31,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-16 19:56:31,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:56:31,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:56:31,644 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:56:31,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 154 [2022-11-16 19:56:31,725 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:56:31,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 124 [2022-11-16 19:56:31,801 INFO L321 Elim1Store]: treesize reduction 50, result has 43.8 percent of original size [2022-11-16 19:56:31,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 129 [2022-11-16 19:56:31,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:31,887 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:31,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 57 treesize of output 44 [2022-11-16 19:56:31,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:31,931 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:31,932 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 41 treesize of output 37 [2022-11-16 19:56:31,974 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:31,994 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:31,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 53 treesize of output 40 [2022-11-16 19:56:32,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-11-16 19:56:32,035 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:32,035 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 37 treesize of output 37 [2022-11-16 19:56:32,132 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:56:32,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:32,265 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:56:32,266 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 167 treesize of output 159 [2022-11-16 19:56:32,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:32,338 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:56:32,339 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 163 treesize of output 155 [2022-11-16 19:56:32,552 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-16 19:56:32,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 150 treesize of output 186 [2022-11-16 19:56:32,835 INFO L321 Elim1Store]: treesize reduction 54, result has 49.1 percent of original size [2022-11-16 19:56:32,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 149 treesize of output 194 [2022-11-16 19:56:32,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:32,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:32,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:32,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:32,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:33,032 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:56:33,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 160 [2022-11-16 19:56:33,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:33,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:33,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:33,168 INFO L321 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2022-11-16 19:56:33,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 181 treesize of output 190 [2022-11-16 19:56:33,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:33,233 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 31 treesize of output 15 [2022-11-16 19:56:33,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:33,267 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 24 [2022-11-16 19:56:33,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:33,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:33,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:33,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:33,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 33 [2022-11-16 19:56:36,625 INFO L321 Elim1Store]: treesize reduction 80, result has 27.3 percent of original size [2022-11-16 19:56:36,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 257 treesize of output 239 [2022-11-16 19:56:36,703 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:56:36,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 180 [2022-11-16 19:56:36,749 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-16 19:56:36,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 119 [2022-11-16 19:56:36,797 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:36,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 31 [2022-11-16 19:56:36,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:36,832 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:36,833 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 28 treesize of output 28 [2022-11-16 19:56:36,872 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:36,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 33 [2022-11-16 19:56:36,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 19:56:36,906 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:36,907 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 30 treesize of output 34 [2022-11-16 19:56:37,006 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:37,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 52 treesize of output 43 [2022-11-16 19:56:37,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:37,034 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:37,034 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 40 treesize of output 44 [2022-11-16 19:56:37,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:56:37,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:56:37,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-16 19:56:37,268 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:56:37,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 154 [2022-11-16 19:56:37,351 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:56:37,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 124 [2022-11-16 19:56:37,424 INFO L321 Elim1Store]: treesize reduction 50, result has 43.8 percent of original size [2022-11-16 19:56:37,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 129 [2022-11-16 19:56:37,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,478 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:37,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 33 [2022-11-16 19:56:37,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 19:56:37,514 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:37,515 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 30 treesize of output 34 [2022-11-16 19:56:37,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,569 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:37,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 40 treesize of output 31 [2022-11-16 19:56:37,582 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 11 treesize of output 7 [2022-11-16 19:56:37,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,593 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 28 treesize of output 20 [2022-11-16 19:56:37,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,645 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:37,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 44 treesize of output 35 [2022-11-16 19:56:37,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:37,673 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:37,674 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 32 treesize of output 36 [2022-11-16 19:56:37,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,821 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:56:37,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:56:37,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:56:37,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:56:37,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,878 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:56:37,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,941 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:56:37,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:56:37,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:37,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:56:37,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:56:37,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:37,991 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:56:38,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:56:38,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:38,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:38,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:38,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-11-16 19:56:38,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:38,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:38,054 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:56:38,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-11-16 19:56:38,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:56:38,341 INFO L321 Elim1Store]: treesize reduction 80, result has 27.3 percent of original size [2022-11-16 19:56:38,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 257 treesize of output 239 [2022-11-16 19:56:38,420 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:56:38,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 180 [2022-11-16 19:56:38,463 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-16 19:56:38,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 119 [2022-11-16 19:56:38,512 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:38,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 33 [2022-11-16 19:56:38,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 19:56:38,548 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:38,548 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 30 treesize of output 34 [2022-11-16 19:56:38,585 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:38,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 33 [2022-11-16 19:56:38,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 19:56:38,620 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:38,620 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 30 treesize of output 34 [2022-11-16 19:56:38,681 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:38,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 52 treesize of output 43 [2022-11-16 19:56:38,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:38,710 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:38,710 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 40 treesize of output 44 [2022-11-16 19:56:38,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:56:38,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-16 19:56:38,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:56:38,935 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:56:38,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 154 [2022-11-16 19:56:39,007 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:56:39,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 124 [2022-11-16 19:56:39,093 INFO L321 Elim1Store]: treesize reduction 50, result has 43.8 percent of original size [2022-11-16 19:56:39,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 129 [2022-11-16 19:56:39,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:39,147 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:39,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 40 treesize of output 31 [2022-11-16 19:56:39,160 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 11 treesize of output 7 [2022-11-16 19:56:39,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,174 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 28 treesize of output 20 [2022-11-16 19:56:39,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:39,213 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:39,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 44 treesize of output 35 [2022-11-16 19:56:39,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 19:56:39,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,240 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 32 treesize of output 24 [2022-11-16 19:56:39,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:39,363 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:39,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 33 [2022-11-16 19:56:39,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:39,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,383 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 30 treesize of output 24 [2022-11-16 19:56:39,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:39,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:39,492 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:56:39,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:56:39,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:39,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:56:39,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:56:39,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,539 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:56:39,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:56:39,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-11-16 19:56:39,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:39,600 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:56:39,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-11-16 19:56:39,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:56:39,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:39,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:39,669 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:56:39,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:56:39,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:39,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:56:39,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:56:39,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:39,726 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:56:39,946 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:56:39,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 174 treesize of output 210 [2022-11-16 19:56:40,025 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:56:40,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 180 [2022-11-16 19:56:40,069 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-16 19:56:40,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 119 [2022-11-16 19:56:40,135 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:40,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 31 [2022-11-16 19:56:40,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:40,169 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:40,169 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 28 treesize of output 28 [2022-11-16 19:56:40,209 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:40,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 42 treesize of output 31 [2022-11-16 19:56:40,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:40,242 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:40,242 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 28 treesize of output 28 [2022-11-16 19:56:40,278 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 19:56:40,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 33 [2022-11-16 19:56:40,289 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 33 treesize of output 25 [2022-11-16 19:56:40,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:56:40,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-16 19:56:40,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 19:56:40,562 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:56:40,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 154 [2022-11-16 19:56:40,644 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:56:40,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 124 [2022-11-16 19:56:40,724 INFO L321 Elim1Store]: treesize reduction 50, result has 43.8 percent of original size [2022-11-16 19:56:40,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 129 [2022-11-16 19:56:40,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:40,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:40,786 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:40,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 57 treesize of output 44 [2022-11-16 19:56:40,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:40,820 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:40,821 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 41 treesize of output 37 [2022-11-16 19:56:40,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:40,863 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:40,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 40 treesize of output 31 [2022-11-16 19:56:40,876 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 11 treesize of output 7 [2022-11-16 19:56:40,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:40,888 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 28 treesize of output 20 [2022-11-16 19:56:40,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:40,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:40,940 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:56:40,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 44 treesize of output 35 [2022-11-16 19:56:40,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:56:40,968 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:56:40,968 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 32 treesize of output 36 [2022-11-16 19:56:41,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:41,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:41,120 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:56:41,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:56:41,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:41,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:41,135 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 19 [2022-11-16 19:56:41,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,143 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 19 treesize of output 13 [2022-11-16 19:56:41,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:56:41,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-11-16 19:56:41,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:41,218 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:56:41,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-11-16 19:56:41,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:41,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:41,277 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:56:41,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:56:41,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:41,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:41,299 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 19 [2022-11-16 19:56:41,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:41,311 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 19 treesize of output 13 [2022-11-16 19:56:41,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:56:41,389 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:56:41,869 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2866#(and (= |ULTIMATE.start_main_~#queue~0#1.offset| 0) (not (<= 1 (select (select |#memory_int| |ULTIMATE.start_check_queue_~n~0#1.base|) (+ |ULTIMATE.start_check_queue_~n~0#1.offset| 4)))) (or (not (= |ULTIMATE.start_check_queue_~n~0#1.offset| 0)) (not (= |ULTIMATE.start_check_queue_~n~0#1.base| 0))) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#queue~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-16 19:56:41,869 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:56:41,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 19:56:41,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-16 19:56:41,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402165] [2022-11-16 19:56:41,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 19:56:41,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 19:56:41,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:56:41,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 19:56:41,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=266, Unknown=2, NotChecked=66, Total=380 [2022-11-16 19:56:41,871 INFO L87 Difference]: Start difference. First operand 133 states and 178 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:56:42,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:56:42,493 INFO L93 Difference]: Finished difference Result 235 states and 321 transitions. [2022-11-16 19:56:42,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:56:42,495 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-16 19:56:42,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:56:42,496 INFO L225 Difference]: With dead ends: 235 [2022-11-16 19:56:42,496 INFO L226 Difference]: Without dead ends: 156 [2022-11-16 19:56:42,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=62, Invalid=364, Unknown=2, NotChecked=78, Total=506 [2022-11-16 19:56:42,497 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 23 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 19:56:42,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 89 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 75 Unchecked, 0.2s Time] [2022-11-16 19:56:42,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-16 19:56:42,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 133. [2022-11-16 19:56:42,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.3409090909090908) internal successors, (177), 132 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:56:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 177 transitions. [2022-11-16 19:56:42,519 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 177 transitions. Word has length 20 [2022-11-16 19:56:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:56:42,519 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 177 transitions. [2022-11-16 19:56:42,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:56:42,520 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 177 transitions. [2022-11-16 19:56:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 19:56:42,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:56:42,520 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-16 19:56:42,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 19:56:42,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:56:42,721 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:56:42,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:56:42,721 INFO L85 PathProgramCache]: Analyzing trace with hash 146217395, now seen corresponding path program 2 times [2022-11-16 19:56:42,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:56:42,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051713203] [2022-11-16 19:56:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:56:42,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:56:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:56:44,235 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:56:44,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:56:44,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051713203] [2022-11-16 19:56:44,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051713203] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:56:44,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924210010] [2022-11-16 19:56:44,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 19:56:44,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:56:44,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:56:44,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:56:44,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 19:56:44,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 19:56:44,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:56:44,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 131 conjunts are in the unsatisfiable core [2022-11-16 19:56:44,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:56:44,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:56:44,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:44,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:44,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2022-11-16 19:56:44,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:44,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:44,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2022-11-16 19:56:44,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2022-11-16 19:56:44,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-16 19:56:44,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 19:56:44,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 19:56:44,766 INFO L321 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2022-11-16 19:56:44,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2022-11-16 19:56:44,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:44,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:44,994 INFO L321 Elim1Store]: treesize reduction 47, result has 9.6 percent of original size [2022-11-16 19:56:44,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 56 [2022-11-16 19:56:44,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:45,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:45,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:45,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2022-11-16 19:56:45,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 39 [2022-11-16 19:56:45,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-16 19:56:45,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 19:56:45,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 19:56:45,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:45,044 INFO L321 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2022-11-16 19:56:45,044 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 1 case distinctions, treesize of input 28 treesize of output 26 [2022-11-16 19:56:45,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:45,345 INFO L321 Elim1Store]: treesize reduction 67, result has 9.5 percent of original size [2022-11-16 19:56:45,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 153 treesize of output 83 [2022-11-16 19:56:45,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:45,363 INFO L321 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-11-16 19:56:45,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 29 [2022-11-16 19:56:45,369 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 19:56:45,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:56:50,493 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 19:56:50,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924210010] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:56:50,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1323197066] [2022-11-16 19:56:50,495 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-16 19:56:50,496 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:56:50,496 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:56:50,496 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:56:50,496 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:56:50,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,526 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:56:50,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 19:56:50,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 19:56:50,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,614 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 19:56:50,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-16 19:56:50,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,675 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:56:50,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 43 [2022-11-16 19:56:50,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,695 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:56:50,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 54 [2022-11-16 19:56:50,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:56:50,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:56:50,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:50,813 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:56:50,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 19:56:50,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:51,093 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:56:51,094 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 167 treesize of output 159 [2022-11-16 19:56:51,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:51,241 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:56:51,241 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 163 treesize of output 155 [2022-11-16 19:56:51,664 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-16 19:56:51,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 150 treesize of output 186 [2022-11-16 19:56:51,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:51,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:51,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:51,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:51,806 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:56:51,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 187 treesize of output 166 [2022-11-16 19:56:52,048 INFO L321 Elim1Store]: treesize reduction 54, result has 49.1 percent of original size [2022-11-16 19:56:52,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 145 treesize of output 190 [2022-11-16 19:56:52,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:52,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:56:52,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:52,207 INFO L321 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2022-11-16 19:56:52,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 181 treesize of output 190 [2022-11-16 19:56:52,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:52,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:52,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:52,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:52,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 33 [2022-11-16 19:56:52,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:52,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:52,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:52,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:56:52,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 33 [2022-11-16 19:57:04,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:57:04,607 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:04,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:04,642 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:57:04,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:57:04,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:04,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 39 [2022-11-16 19:57:04,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,681 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 0 case distinctions, treesize of input 34 treesize of output 20 [2022-11-16 19:57:04,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:57:04,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:04,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:04,745 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:57:04,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:57:04,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:04,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:04,763 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 19 [2022-11-16 19:57:04,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,773 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 19 treesize of output 13 [2022-11-16 19:57:04,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-11-16 19:57:04,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:04,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:04,836 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:57:04,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-11-16 19:57:04,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:57:05,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:05,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:05,136 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:57:05,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:57:05,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:05,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:05,154 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 19 [2022-11-16 19:57:05,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,166 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 19 treesize of output 13 [2022-11-16 19:57:05,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:57:05,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-11-16 19:57:05,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:05,238 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 19:57:05,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2022-11-16 19:57:05,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:05,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:05,296 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-16 19:57:05,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 122 [2022-11-16 19:57:05,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:05,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:57:05,317 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 19 [2022-11-16 19:57:05,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:05,328 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 19 treesize of output 13 [2022-11-16 19:57:05,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:57:05,590 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:57:07,445 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3517#(and (<= |ULTIMATE.start_append_to_queue_#in~n#1.offset| 0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_append_to_queue_#in~n#1.offset|) (<= 0 |ULTIMATE.start_append_to_queue_~n#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~new_id~0#1| 2147483648)) (<= 2 |ULTIMATE.start_main_~next_time~0#1|) (<= |ULTIMATE.start_append_to_queue_#in~q#1.offset| 0) (<= |ULTIMATE.start_append_to_queue_~n#1.offset| 0) (<= |ULTIMATE.start_append_to_queue_~q#1.offset| 0) (not (<= 1 (select (select |#memory_int| |ULTIMATE.start_check_queue_~n~0#1.base|) (+ |ULTIMATE.start_check_queue_~n~0#1.offset| 4)))) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_append_to_queue_#in~q#1.offset|) (<= 0 |ULTIMATE.start_main_~#queue~0#1.offset|) (<= |ULTIMATE.start_main_~new_process~0#1.offset| 0) (or (not (= |ULTIMATE.start_check_queue_~n~0#1.offset| 0)) (not (= |ULTIMATE.start_check_queue_~n~0#1.base| 0))) (<= 0 |ULTIMATE.start_append_to_queue_#in~q#1.base|) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_append_to_queue_~q#1.offset|) (<= |ULTIMATE.start_main_~next_time~0#1| 1001) (<= |ULTIMATE.start_main_~#queue~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#queue~0#1.base|) (<= |ULTIMATE.start_main_~new_id~0#1| 2147483647) (<= 0 |ULTIMATE.start_append_to_queue_~q#1.base|) (<= 0 |ULTIMATE.start_main_~new_process~0#1.offset|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-16 19:57:07,446 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:57:07,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 19:57:07,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2022-11-16 19:57:07,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63940635] [2022-11-16 19:57:07,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 19:57:07,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 19:57:07,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:57:07,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 19:57:07,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=628, Unknown=1, NotChecked=0, Total=702 [2022-11-16 19:57:07,448 INFO L87 Difference]: Start difference. First operand 133 states and 177 transitions. Second operand has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:57:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:57:08,792 INFO L93 Difference]: Finished difference Result 245 states and 331 transitions. [2022-11-16 19:57:08,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 19:57:08,792 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-16 19:57:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:57:08,793 INFO L225 Difference]: With dead ends: 245 [2022-11-16 19:57:08,793 INFO L226 Difference]: Without dead ends: 145 [2022-11-16 19:57:08,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=115, Invalid=940, Unknown=1, NotChecked=0, Total=1056 [2022-11-16 19:57:08,795 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 68 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 19:57:08,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 130 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 90 Unchecked, 0.5s Time] [2022-11-16 19:57:08,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-16 19:57:08,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 136. [2022-11-16 19:57:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.3333333333333333) internal successors, (180), 135 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:57:08,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 180 transitions. [2022-11-16 19:57:08,812 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 180 transitions. Word has length 22 [2022-11-16 19:57:08,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:57:08,812 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 180 transitions. [2022-11-16 19:57:08,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:57:08,813 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 180 transitions. [2022-11-16 19:57:08,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 19:57:08,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:57:08,814 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:57:08,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 19:57:09,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 19:57:09,020 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:57:09,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:57:09,020 INFO L85 PathProgramCache]: Analyzing trace with hash 365148980, now seen corresponding path program 3 times [2022-11-16 19:57:09,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:57:09,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851926491] [2022-11-16 19:57:09,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:57:09,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:57:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:57:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 19:57:09,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:57:09,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851926491] [2022-11-16 19:57:09,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851926491] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:57:09,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821451177] [2022-11-16 19:57:09,697 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 19:57:09,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:57:09,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:57:09,698 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:57:09,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f07b2f-34f8-4149-b6a1-b1d3cb3f021f/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 19:57:09,947 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 19:57:09,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:57:09,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-16 19:57:09,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:57:10,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 28 [2022-11-16 19:57:10,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-16 19:57:10,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-16 19:57:10,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-16 19:57:10,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-16 19:57:10,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 19:57:10,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 19:57:10,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 19:57:10,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-16 19:57:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 19:57:10,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:57:10,221 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:57:10,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 35 [2022-11-16 19:57:10,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2022-11-16 19:57:10,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:57:10,327 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 19:57:10,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821451177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:57:10,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1843496716] [2022-11-16 19:57:10,330 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-16 19:57:10,330 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:57:10,330 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:57:10,330 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:57:10,330 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:57:10,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,365 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:57:10,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 19:57:10,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 19:57:10,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,458 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 19:57:10,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-16 19:57:10,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:57:10,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,544 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:57:10,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 43 [2022-11-16 19:57:10,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,564 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:57:10,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 54 [2022-11-16 19:57:10,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,613 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:57:10,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 19:57:10,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:10,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 36 [2022-11-16 19:57:10,996 INFO L321 Elim1Store]: treesize reduction 80, result has 27.3 percent of original size [2022-11-16 19:57:10,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 257 treesize of output 239 [2022-11-16 19:57:11,090 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-16 19:57:11,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 180 [2022-11-16 19:57:11,137 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-16 19:57:11,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 119 [2022-11-16 19:57:11,268 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:57:11,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 74 treesize of output 61 [2022-11-16 19:57:11,281 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 38 treesize of output 26 [2022-11-16 19:57:11,312 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:57:11,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 79 [2022-11-16 19:57:11,413 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:57:11,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 74 treesize of output 61 [2022-11-16 19:57:11,427 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 38 treesize of output 26 [2022-11-16 19:57:11,455 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:57:11,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 79 [2022-11-16 19:57:11,574 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:57:11,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 52 treesize of output 43 [2022-11-16 19:57:11,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:57:11,606 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:57:11,606 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 40 treesize of output 44 [2022-11-16 19:57:11,856 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:57:11,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 154 [2022-11-16 19:57:11,939 INFO L321 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-11-16 19:57:11,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 124 [2022-11-16 19:57:12,014 INFO L321 Elim1Store]: treesize reduction 50, result has 43.8 percent of original size [2022-11-16 19:57:12,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 129 [2022-11-16 19:57:12,099 INFO L321 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-11-16 19:57:12,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 53 treesize of output 52 [2022-11-16 19:57:12,115 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 32 treesize of output 26 [2022-11-16 19:57:12,141 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 19:57:12,141 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 32 treesize of output 22 [2022-11-16 19:57:12,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-11-16 19:57:12,180 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 19:57:12,180 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 32 treesize of output 22 [2022-11-16 19:57:12,254 INFO L321 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-11-16 19:57:12,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 43 [2022-11-16 19:57:12,270 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 11 treesize of output 7 [2022-11-16 19:57:12,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:57:12,289 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 23 treesize of output 15 [2022-11-16 19:57:12,314 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:57:12,314 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 28 treesize of output 28 [2022-11-16 19:57:12,573 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 19:57:12,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 44 treesize of output 35 [2022-11-16 19:57:12,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:57:12,605 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:57:12,605 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 32 treesize of output 36 [2022-11-16 19:57:14,098 INFO L321 Elim1Store]: treesize reduction 274, result has 32.2 percent of original size [2022-11-16 19:57:14,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 732 treesize of output 1309 [2022-11-16 19:57:14,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-16 19:57:14,513 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:57:14,539 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:57:14,576 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:57:14,614 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:57:14,640 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:57:14,664 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:57:14,716 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:03:16,324 WARN L233 SmtUtils]: Spent 13.32s on a formula simplification that was a NOOP. DAG size: 57565 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 20:05:03,520 WARN L233 SmtUtils]: Spent 6.71s on a formula simplification that was a NOOP. DAG size: 40902 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)