./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/shared_mem1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/shared_mem1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8 --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 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:25:40,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:25:40,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:25:40,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:25:40,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:25:40,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:25:40,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:25:40,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:25:40,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:25:40,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:25:40,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:25:40,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:25:40,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:25:40,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:25:40,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:25:40,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:25:40,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:25:40,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:25:40,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:25:40,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:25:40,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:25:40,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:25:40,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:25:40,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:25:40,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:25:40,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:25:40,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:25:40,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:25:40,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:25:40,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:25:40,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:25:40,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:25:40,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:25:40,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:25:40,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:25:40,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:25:40,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:25:40,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:25:40,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:25:40,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:25:40,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:25:40,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:25:40,800 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:25:40,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:25:40,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:25:40,801 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:25:40,802 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:25:40,802 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:25:40,802 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:25:40,802 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:25:40,803 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:25:40,803 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:25:40,803 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:25:40,803 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:25:40,803 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:25:40,804 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:25:40,804 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:25:40,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:25:40,805 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:25:40,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:25:40,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:25:40,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:25:40,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:25:40,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:25:40,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:25:40,807 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:25:40,807 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:25:40,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:25:40,807 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:25:40,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:25:40,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:25:40,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:25:40,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:25:40,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:25:40,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:25:40,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:25:40,809 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:25:40,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:25:40,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:25:40,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:25:40,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:25:40,810 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f [2021-11-07 01:25:41,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:25:41,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:25:41,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:25:41,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:25:41,114 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:25:41,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-07 01:25:41,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/data/2002d93fe/fe0328d10a084d8080da2940d0dc1644/FLAG70005f466 [2021-11-07 01:25:41,780 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:25:41,781 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-07 01:25:41,801 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/data/2002d93fe/fe0328d10a084d8080da2940d0dc1644/FLAG70005f466 [2021-11-07 01:25:42,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/data/2002d93fe/fe0328d10a084d8080da2940d0dc1644 [2021-11-07 01:25:42,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:25:42,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:25:42,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:25:42,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:25:42,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:25:42,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@275a6002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42, skipping insertion in model container [2021-11-07 01:25:42,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:25:42,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:25:42,573 WARN L228 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_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-07 01:25:42,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:25:42,596 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:25:42,645 WARN L228 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_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-07 01:25:42,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:25:42,675 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:25:42,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42 WrapperNode [2021-11-07 01:25:42,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:25:42,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:25:42,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:25:42,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:25:42,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:25:42,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:25:42,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:25:42,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:25:42,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:25:42,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:25:42,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:25:42,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:25:42,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (1/1) ... [2021-11-07 01:25:42,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:25:42,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:25:42,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:25:42,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:25:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:25:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:25:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:25:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:25:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:25:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:25:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:25:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:25:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:25:43,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:25:43,482 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 01:25:43,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:25:43 BoogieIcfgContainer [2021-11-07 01:25:43,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:25:43,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:25:43,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:25:43,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:25:43,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:25:42" (1/3) ... [2021-11-07 01:25:43,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f65a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:25:43, skipping insertion in model container [2021-11-07 01:25:43,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:42" (2/3) ... [2021-11-07 01:25:43,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f65a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:25:43, skipping insertion in model container [2021-11-07 01:25:43,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:25:43" (3/3) ... [2021-11-07 01:25:43,508 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem1.i [2021-11-07 01:25:43,514 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:25:43,514 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:25:43,564 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:25:43,571 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:25:43,571 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:25:43,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:43,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:25:43,590 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:43,590 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:25:43,591 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:25:43,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:43,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1727782104, now seen corresponding path program 1 times [2021-11-07 01:25:43,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:25:43,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532838582] [2021-11-07 01:25:43,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:43,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:25:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:43,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:43,777 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:25:43,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532838582] [2021-11-07 01:25:43,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532838582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:43,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:43,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:25:43,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037692388] [2021-11-07 01:25:43,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:25:43,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:25:43,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:25:43,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:25:43,801 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-07 01:25:43,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:43,814 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-11-07 01:25:43,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:25:43,816 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-07 01:25:43,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:43,823 INFO L225 Difference]: With dead ends: 15 [2021-11-07 01:25:43,823 INFO L226 Difference]: Without dead ends: 8 [2021-11-07 01:25:43,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:25:43,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-07 01:25:43,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-07 01:25:43,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 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) [2021-11-07 01:25:43,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-07 01:25:43,855 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2021-11-07 01:25:43,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:43,855 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-07 01:25:43,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-07 01:25:43,856 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-07 01:25:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 01:25:43,856 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:43,857 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:43,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:25:43,857 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:25:43,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:43,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1888775881, now seen corresponding path program 1 times [2021-11-07 01:25:43,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:25:43,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320212350] [2021-11-07 01:25:43,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:43,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:25:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:44,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:44,335 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:25:44,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320212350] [2021-11-07 01:25:44,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320212350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:44,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:44,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 01:25:44,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45361439] [2021-11-07 01:25:44,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:44,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:25:44,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:44,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:44,340 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-11-07 01:25:44,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:44,605 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-07 01:25:44,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:44,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2021-11-07 01:25:44,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:44,607 INFO L225 Difference]: With dead ends: 15 [2021-11-07 01:25:44,607 INFO L226 Difference]: Without dead ends: 13 [2021-11-07 01:25:44,607 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:25:44,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-07 01:25:44,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-07 01:25:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:44,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-11-07 01:25:44,612 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2021-11-07 01:25:44,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:44,614 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-11-07 01:25:44,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-11-07 01:25:44,614 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-07 01:25:44,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:25:44,616 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:44,617 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:44,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:25:44,620 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:25:44,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:44,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2091148262, now seen corresponding path program 1 times [2021-11-07 01:25:44,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:25:44,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106907452] [2021-11-07 01:25:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:44,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:25:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:45,172 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:25:45,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106907452] [2021-11-07 01:25:45,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106907452] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:25:45,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679894870] [2021-11-07 01:25:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:45,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:25:45,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:25:45,180 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:25:45,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 01:25:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:45,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-07 01:25:45,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:45,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:25:45,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:25:45,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:25:45,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:25:45,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:25:45,474 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-07 01:25:45,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-07 01:25:45,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:25:45,529 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-07 01:25:45,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-07 01:25:45,671 INFO L354 Elim1Store]: treesize reduction 151, result has 18.4 percent of original size [2021-11-07 01:25:45,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 265 treesize of output 269 [2021-11-07 01:25:47,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-11-07 01:25:47,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [564508480] [2021-11-07 01:25:47,271 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:25:47,272 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:25:47,276 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:25:47,281 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:25:47,282 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:25:47,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,318 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,320 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:25:47,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:25:47,326 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:25:47,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:25:47,332 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,333 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,334 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:25:47,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:25:47,337 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:25:47,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:25:47,339 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:25:47,341 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:25:47,344 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,346 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:25:47,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:25:47,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,350 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,351 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:25:47,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:25:47,354 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:25:47,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:25:47,356 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,357 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,357 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,358 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:25:47,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:25:47,360 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:25:47,362 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,363 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:25:47,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:25:47,370 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,371 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 01:25:47,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-07 01:25:47,374 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 01:25:47,376 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:25:47,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:25:47,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:25:47,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-07 01:25:47,395 FATAL L? ?]: Ignoring exception! java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@ec92dc9 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker.assertLhs(IncrementalPlicationChecker.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker.checkPlication(IncrementalPlicationChecker.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexEqualityManager.(ArrayIndexEqualityManager.java:92) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:571) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:444) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:25:47,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-07 01:25:47,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-11-07 01:25:47,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85560835] [2021-11-07 01:25:47,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:25:47,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:25:47,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:25:47,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:47,400 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:25:47,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:47,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:25:47,624 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@ec92dc9 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:356) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:204) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:869) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:783) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 01:25:47,627 INFO L168 Benchmark]: Toolchain (without parser) took 5550.40 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 87.9 MB in the beginning and 68.6 MB in the end (delta: 19.3 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:47,627 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory was 96.3 MB in the beginning and 96.2 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:25:47,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 585.62 ms. Allocated memory is still 125.8 MB. Free memory was 87.7 MB in the beginning and 93.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:47,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.16 ms. Allocated memory is still 125.8 MB. Free memory was 93.3 MB in the beginning and 91.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:47,629 INFO L168 Benchmark]: Boogie Preprocessor took 29.06 ms. Allocated memory is still 125.8 MB. Free memory was 91.2 MB in the beginning and 90.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:25:47,630 INFO L168 Benchmark]: RCFGBuilder took 749.18 ms. Allocated memory is still 125.8 MB. Free memory was 90.0 MB in the beginning and 68.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:47,631 INFO L168 Benchmark]: TraceAbstraction took 4124.85 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 67.6 MB in the beginning and 68.6 MB in the end (delta: -1.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:25:47,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory was 96.3 MB in the beginning and 96.2 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 585.62 ms. Allocated memory is still 125.8 MB. Free memory was 87.7 MB in the beginning and 93.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.16 ms. Allocated memory is still 125.8 MB. Free memory was 93.3 MB in the beginning and 91.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.06 ms. Allocated memory is still 125.8 MB. Free memory was 91.2 MB in the beginning and 90.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 749.18 ms. Allocated memory is still 125.8 MB. Free memory was 90.0 MB in the beginning and 68.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4124.85 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 67.6 MB in the beginning and 68.6 MB in the end (delta: -1.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@ec92dc9 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@ec92dc9: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-07 01:25:47,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/shared_mem1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8 --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 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:25:50,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:25:50,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:25:50,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:25:50,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:25:50,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:25:50,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:25:50,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:25:50,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:25:50,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:25:50,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:25:50,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:25:50,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:25:50,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:25:50,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:25:50,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:25:50,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:25:50,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:25:50,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:25:50,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:25:50,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:25:50,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:25:50,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:25:50,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:25:50,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:25:50,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:25:50,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:25:50,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:25:50,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:25:50,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:25:50,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:25:50,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:25:50,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:25:50,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:25:50,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:25:50,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:25:50,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:25:50,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:25:50,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:25:50,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:25:50,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:25:50,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:25:50,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:25:50,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:25:50,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:25:50,194 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:25:50,195 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:25:50,195 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:25:50,195 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:25:50,195 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:25:50,196 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:25:50,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:25:50,198 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:25:50,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:25:50,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:25:50,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:25:50,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:25:50,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:25:50,199 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:25:50,200 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:25:50,200 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:25:50,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:25:50,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:25:50,201 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:25:50,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:25:50,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:25:50,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:25:50,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:25:50,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:25:50,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:25:50,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:25:50,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:25:50,203 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:25:50,204 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:25:50,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:25:50,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:25:50,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:25:50,205 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47cb7cab177485da5df0f1af4a3f61fd7eb970990493dd3ac764f888774cbf0f [2021-11-07 01:25:50,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:25:50,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:25:50,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:25:50,648 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:25:50,649 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:25:50,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-07 01:25:50,741 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/data/ba04165a5/28567f65786e4b1ba63650355c2f179e/FLAG55614e7ea [2021-11-07 01:25:51,411 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:25:51,412 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/sv-benchmarks/c/heap-data/shared_mem1.i [2021-11-07 01:25:51,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/data/ba04165a5/28567f65786e4b1ba63650355c2f179e/FLAG55614e7ea [2021-11-07 01:25:51,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/data/ba04165a5/28567f65786e4b1ba63650355c2f179e [2021-11-07 01:25:51,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:25:51,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:25:51,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:25:51,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:25:51,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:25:51,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:51,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f4e56c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51, skipping insertion in model container [2021-11-07 01:25:51,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:51,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:25:51,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:25:51,821 WARN L228 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_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-07 01:25:51,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:25:51,839 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:25:51,883 WARN L228 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_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/sv-benchmarks/c/heap-data/shared_mem1.i[23879,23892] [2021-11-07 01:25:51,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:25:51,922 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:25:51,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51 WrapperNode [2021-11-07 01:25:51,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:25:51,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:25:51,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:25:51,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:25:51,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:51,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:51,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:25:51,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:25:51,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:25:51,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:25:51,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:51,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:51,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:51,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:52,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:52,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:52,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:52,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:25:52,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:25:52,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:25:52,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:25:52,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (1/1) ... [2021-11-07 01:25:52,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:25:52,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:25:52,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:25:52,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:25:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:25:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:25:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:25:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:25:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:25:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:25:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:25:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:25:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:25:53,055 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:25:53,056 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 01:25:53,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:25:53 BoogieIcfgContainer [2021-11-07 01:25:53,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:25:53,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:25:53,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:25:53,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:25:53,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:25:51" (1/3) ... [2021-11-07 01:25:53,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1569307c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:25:53, skipping insertion in model container [2021-11-07 01:25:53,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:25:51" (2/3) ... [2021-11-07 01:25:53,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1569307c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:25:53, skipping insertion in model container [2021-11-07 01:25:53,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:25:53" (3/3) ... [2021-11-07 01:25:53,066 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem1.i [2021-11-07 01:25:53,071 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:25:53,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:25:53,127 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:25:53,133 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:25:53,133 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:25:53,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:53,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:25:53,152 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:53,153 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:53,154 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:25:53,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:53,159 INFO L85 PathProgramCache]: Analyzing trace with hash -15033972, now seen corresponding path program 1 times [2021-11-07 01:25:53,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:53,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400806836] [2021-11-07 01:25:53,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:53,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:53,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:53,176 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:53,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:25:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:53,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:25:53,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:53,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:53,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:53,407 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:53,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400806836] [2021-11-07 01:25:53,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400806836] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:53,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:53,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:25:53,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993509731] [2021-11-07 01:25:53,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:25:53,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:53,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:25:53,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:25:53,437 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:53,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:53,453 INFO L93 Difference]: Finished difference Result 26 states and 37 transitions. [2021-11-07 01:25:53,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:25:53,455 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 01:25:53,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:53,462 INFO L225 Difference]: With dead ends: 26 [2021-11-07 01:25:53,463 INFO L226 Difference]: Without dead ends: 12 [2021-11-07 01:25:53,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:25:53,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-07 01:25:53,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-07 01:25:53,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2021-11-07 01:25:53,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-11-07 01:25:53,499 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 16 transitions. Word has length 10 [2021-11-07 01:25:53,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:53,499 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-11-07 01:25:53,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:53,500 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-07 01:25:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:25:53,501 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:53,501 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:53,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:25:53,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:53,714 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:25:53,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:53,715 INFO L85 PathProgramCache]: Analyzing trace with hash -263268138, now seen corresponding path program 1 times [2021-11-07 01:25:53,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:53,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869508532] [2021-11-07 01:25:53,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:53,716 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:53,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:53,717 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:53,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:25:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:53,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 01:25:53,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:54,076 INFO L354 Elim1Store]: treesize reduction 75, result has 29.9 percent of original size [2021-11-07 01:25:54,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 51 [2021-11-07 01:25:54,161 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-07 01:25:54,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 48 [2021-11-07 01:25:54,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:25:54,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:25:54,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:25:54,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:25:55,249 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:25:55,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 147 treesize of output 111 [2021-11-07 01:25:55,269 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:25:55,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 105 treesize of output 75 [2021-11-07 01:25:55,347 INFO L354 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2021-11-07 01:25:55,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 69 treesize of output 72 [2021-11-07 01:25:56,320 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:25:56,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 102 treesize of output 74 [2021-11-07 01:25:56,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:56,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:57,012 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:57,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869508532] [2021-11-07 01:25:57,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869508532] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:57,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:57,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-11-07 01:25:57,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052986816] [2021-11-07 01:25:57,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:25:57,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:57,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:25:57,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:25:57,017 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. Second operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:09,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:09,552 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2021-11-07 01:26:09,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:26:09,554 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 01:26:09,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:09,556 INFO L225 Difference]: With dead ends: 37 [2021-11-07 01:26:09,556 INFO L226 Difference]: Without dead ends: 35 [2021-11-07 01:26:09,558 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-11-07 01:26:09,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-07 01:26:09,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 20. [2021-11-07 01:26:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-11-07 01:26:09,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2021-11-07 01:26:09,569 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 28 transitions. Word has length 10 [2021-11-07 01:26:09,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:09,570 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-11-07 01:26:09,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:09,570 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-07 01:26:09,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:26:09,571 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:09,571 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:09,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:09,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:09,777 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:26:09,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:09,778 INFO L85 PathProgramCache]: Analyzing trace with hash -263266216, now seen corresponding path program 1 times [2021-11-07 01:26:09,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:09,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663343002] [2021-11-07 01:26:09,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:09,779 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:09,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:09,780 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:09,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:26:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:09,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 01:26:09,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:10,001 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-07 01:26:10,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:26:10,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-07 01:26:10,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:10,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:26:10,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:10,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-07 01:26:10,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:10,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-07 01:26:10,474 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:26:10,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 106 treesize of output 76 [2021-11-07 01:26:10,488 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:26:10,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 70 treesize of output 46 [2021-11-07 01:26:10,516 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-07 01:26:10,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 40 treesize of output 27 [2021-11-07 01:26:10,626 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:26:10,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 26 [2021-11-07 01:26:10,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:10,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:10,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:10,931 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:10,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663343002] [2021-11-07 01:26:10,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663343002] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:10,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:10,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-07 01:26:10,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913111700] [2021-11-07 01:26:10,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:26:10,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:10,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:26:10,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:26:10,938 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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) [2021-11-07 01:26:14,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:14,332 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2021-11-07 01:26:14,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:26:14,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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 10 [2021-11-07 01:26:14,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:14,333 INFO L225 Difference]: With dead ends: 34 [2021-11-07 01:26:14,334 INFO L226 Difference]: Without dead ends: 27 [2021-11-07 01:26:14,334 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:26:14,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-07 01:26:14,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2021-11-07 01:26:14,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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) [2021-11-07 01:26:14,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-11-07 01:26:14,340 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 10 [2021-11-07 01:26:14,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:14,340 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-07 01:26:14,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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) [2021-11-07 01:26:14,341 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-07 01:26:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 01:26:14,341 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:14,341 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:14,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:26:14,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:14,549 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:26:14,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:14,550 INFO L85 PathProgramCache]: Analyzing trace with hash -434920839, now seen corresponding path program 1 times [2021-11-07 01:26:14,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:14,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951123650] [2021-11-07 01:26:14,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:14,551 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:14,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:14,557 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:14,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:26:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:14,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-07 01:26:14,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:14,849 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:26:14,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-07 01:26:14,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:14,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:26:14,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:14,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:26:14,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:14,953 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-07 01:26:14,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 38 [2021-11-07 01:26:14,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:14,972 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:26:14,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2021-11-07 01:26:15,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:15,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-07 01:26:15,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:17,083 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-07 01:26:17,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 244 treesize of output 226 [2021-11-07 01:26:17,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:17,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-07 01:26:17,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:17,504 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-07 01:26:17,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 273 treesize of output 237 [2021-11-07 01:26:17,686 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-07 01:26:17,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 275 treesize of output 242 [2021-11-07 01:26:17,704 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:17,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-07 01:26:17,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:17,821 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-07 01:26:17,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 224 treesize of output 176 [2021-11-07 01:26:17,831 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:26:17,871 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-07 01:26:17,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 149 treesize of output 157 [2021-11-07 01:26:18,643 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-07 01:26:18,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 173 treesize of output 112 [2021-11-07 01:26:18,755 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-07 01:26:18,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 case distinctions, treesize of input 100 treesize of output 90 [2021-11-07 01:26:18,771 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-07 01:26:18,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 75 [2021-11-07 01:26:19,129 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:26:19,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 39 [2021-11-07 01:26:19,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:19,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:19,699 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:19,705 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-07 01:26:19,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:19,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-07 01:26:19,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:19,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-07 01:26:19,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:19,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-07 01:26:19,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:19,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:26:22,519 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_5 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_5 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd v_ULTIMATE.start_main_~n~0.offset_5 (_ bv4 32))) (.cse8 (bvadd v_ULTIMATE.start_main_~n~0.offset_5 (_ bv8 32)))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_7) .cse8 v_DerPreprocessor_6)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_5)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 v_DerPreprocessor_4) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_5))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 v_DerPreprocessor_8) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_5))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_5))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse0))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-07 01:26:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-07 01:26:23,732 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:23,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951123650] [2021-11-07 01:26:23,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951123650] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:26:23,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [614332248] [2021-11-07 01:26:23,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:23,734 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:26:23,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:26:23,736 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:26:23,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-07 01:26:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:24,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-07 01:26:24,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:24,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:24,108 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-07 01:26:24,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-07 01:26:24,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:24,157 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-07 01:26:24,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-07 01:26:24,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:24,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:26:24,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:24,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:26:24,272 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:26:24,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 19 treesize of output 21 [2021-11-07 01:26:24,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:24,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-11-07 01:26:24,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:26,067 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-07 01:26:26,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 245 treesize of output 227 [2021-11-07 01:26:26,668 INFO L354 Elim1Store]: treesize reduction 266, result has 9.5 percent of original size [2021-11-07 01:26:26,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 283 treesize of output 262 [2021-11-07 01:26:26,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:26,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-07 01:26:26,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:26,955 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-07 01:26:26,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 234 treesize of output 198 [2021-11-07 01:26:26,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:26,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-11-07 01:26:26,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:27,041 INFO L354 Elim1Store]: treesize reduction 180, result has 16.7 percent of original size [2021-11-07 01:26:27,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 177 [2021-11-07 01:26:27,046 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:26:27,076 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-07 01:26:27,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 150 treesize of output 158 [2021-11-07 01:26:27,791 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-07 01:26:27,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 101 [2021-11-07 01:26:27,836 INFO L354 Elim1Store]: treesize reduction 104, result has 9.6 percent of original size [2021-11-07 01:26:27,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 case distinctions, treesize of input 89 treesize of output 75 [2021-11-07 01:26:27,848 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-07 01:26:27,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 54 [2021-11-07 01:26:28,151 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:26:28,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 26 [2021-11-07 01:26:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:28,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:28,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:28,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 360 [2021-11-07 01:26:28,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:28,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 380 [2021-11-07 01:26:28,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:28,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 440 [2021-11-07 01:26:28,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:28,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 481 [2021-11-07 01:26:28,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:28,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 477 [2021-11-07 01:26:30,732 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_7 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_7 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse8 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse5 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse6 (bvadd v_ULTIMATE.start_main_~n~0.offset_7 (_ bv4 32))) (.cse7 (bvadd v_ULTIMATE.start_main_~n~0.offset_7 (_ bv8 32)))) (let ((.cse0 (let ((.cse10 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 ULTIMATE.start_main_~x~0) .cse6 v_DerPreprocessor_15) .cse7 v_DerPreprocessor_14)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse5 v_DerPreprocessor_13)))) (.cse1 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 v_DerPreprocessor_12) .cse6 c_ULTIMATE.start_main_~m~0.base) .cse7 c_ULTIMATE.start_main_~head~0.base)))) (store .cse9 c_ULTIMATE.start_main_~list~0.base (store (select .cse9 c_ULTIMATE.start_main_~list~0.base) .cse5 v_ULTIMATE.start_main_~n~0.base_7))) c_ULTIMATE.start_main_~head~0.base) .cse8))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 v_DerPreprocessor_16) .cse6 c_ULTIMATE.start_main_~m~0.offset) .cse7 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse4 c_ULTIMATE.start_main_~list~0.base (store (select .cse4 c_ULTIMATE.start_main_~list~0.base) .cse5 v_ULTIMATE.start_main_~n~0.offset_7))) c_ULTIMATE.start_main_~head~0.base) .cse8))) (store .cse2 .cse3 (bvadd (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (select .cse2 .cse3))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_7)))))) is different from false [2021-11-07 01:26:31,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-07 01:26:31,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [614332248] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:26:31,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914396140] [2021-11-07 01:26:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:31,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:26:31,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:26:31,205 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:26:31,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 01:26:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:31,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-07 01:26:31,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:31,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:31,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:26:31,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:31,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:26:31,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:31,592 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-07 01:26:31,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-07 01:26:31,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:31,640 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-07 01:26:31,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-07 01:26:31,715 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:26:31,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-07 01:26:32,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:32,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-11-07 01:26:32,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:34,611 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-07 01:26:34,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 267 treesize of output 249 [2021-11-07 01:26:35,678 INFO L354 Elim1Store]: treesize reduction 254, result has 9.9 percent of original size [2021-11-07 01:26:35,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 323 treesize of output 302 [2021-11-07 01:26:35,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:35,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-07 01:26:35,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:35,914 INFO L354 Elim1Store]: treesize reduction 466, result has 10.2 percent of original size [2021-11-07 01:26:35,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 256 treesize of output 232 [2021-11-07 01:26:35,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:35,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-07 01:26:35,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:36,093 INFO L354 Elim1Store]: treesize reduction 224, result has 17.0 percent of original size [2021-11-07 01:26:36,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 247 treesize of output 209 [2021-11-07 01:26:36,095 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:26:36,145 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-07 01:26:36,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 185 treesize of output 193 [2021-11-07 01:26:37,333 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-07 01:26:37,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 191 treesize of output 130 [2021-11-07 01:26:37,435 INFO L354 Elim1Store]: treesize reduction 80, result has 30.4 percent of original size [2021-11-07 01:26:37,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 case distinctions, treesize of input 118 treesize of output 120 [2021-11-07 01:26:37,460 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-07 01:26:37,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 101 [2021-11-07 01:26:38,110 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:26:38,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 98 treesize of output 70 [2021-11-07 01:26:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:38,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:38,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:38,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 466 [2021-11-07 01:26:38,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:38,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 496 [2021-11-07 01:26:38,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:38,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 576 [2021-11-07 01:26:38,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:38,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 633 [2021-11-07 01:26:38,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:38,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 635 [2021-11-07 01:26:41,194 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_9 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_9 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd v_ULTIMATE.start_main_~n~0.offset_9 (_ bv4 32))) (.cse8 (bvadd v_ULTIMATE.start_main_~n~0.offset_9 (_ bv8 32)))) (let ((.cse0 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_23) .cse8 v_DerPreprocessor_22)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_21)))) (.cse1 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 v_DerPreprocessor_20) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_9))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 v_DerPreprocessor_24) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_9))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse4 (select .cse2 .cse3))) (or (bvslt (select (select (store .cse0 .cse1 (store .cse2 .cse3 (bvadd .cse4 (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_9)))) (not (bvsle .cse4 (_ bv100 32))))))))) is different from false [2021-11-07 01:26:41,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-07 01:26:41,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914396140] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:26:41,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:26:41,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 8, 9, 9] total 30 [2021-11-07 01:26:41,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897357257] [2021-11-07 01:26:41,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 01:26:41,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:41,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 01:26:41,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=571, Unknown=3, NotChecked=156, Total=870 [2021-11-07 01:26:41,990 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 30 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 30 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:46,932 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse25 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse26 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse1 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32))) (.cse40 (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset))) (.cse27 (= c_ULTIMATE.start_main_~head~0.base c_ULTIMATE.start_main_~m~0.base))) (and (= (select .cse0 .cse1) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_9 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_9 (_ BitVec 32))) (let ((.cse11 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse9 (bvadd v_ULTIMATE.start_main_~n~0.offset_9 (_ bv4 32))) (.cse10 (bvadd v_ULTIMATE.start_main_~n~0.offset_9 (_ bv8 32)))) (let ((.cse2 (let ((.cse13 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 ULTIMATE.start_main_~x~0) .cse9 v_DerPreprocessor_23) .cse10 v_DerPreprocessor_22)))) (store .cse13 c_ULTIMATE.start_main_~list~0.base (store (select .cse13 c_ULTIMATE.start_main_~list~0.base) .cse8 v_DerPreprocessor_21)))) (.cse3 (select (select (let ((.cse12 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 v_DerPreprocessor_20) .cse9 c_ULTIMATE.start_main_~m~0.base) .cse10 c_ULTIMATE.start_main_~head~0.base)))) (store .cse12 c_ULTIMATE.start_main_~list~0.base (store (select .cse12 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.base_9))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse4 (select .cse2 .cse3)) (.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 v_DerPreprocessor_24) .cse9 c_ULTIMATE.start_main_~m~0.offset) .cse10 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse7 c_ULTIMATE.start_main_~list~0.base (store (select .cse7 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.offset_9))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse6 (select .cse4 .cse5))) (or (bvslt (select (select (store .cse2 .cse3 (store .cse4 .cse5 (bvadd .cse6 (select (select .cse2 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_9)))) (not (bvsle .cse6 (_ bv100 32))))))))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_7 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_7 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse22 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse19 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse20 (bvadd v_ULTIMATE.start_main_~n~0.offset_7 (_ bv4 32))) (.cse21 (bvadd v_ULTIMATE.start_main_~n~0.offset_7 (_ bv8 32)))) (let ((.cse14 (let ((.cse24 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 ULTIMATE.start_main_~x~0) .cse20 v_DerPreprocessor_15) .cse21 v_DerPreprocessor_14)))) (store .cse24 c_ULTIMATE.start_main_~list~0.base (store (select .cse24 c_ULTIMATE.start_main_~list~0.base) .cse19 v_DerPreprocessor_13)))) (.cse15 (select (select (let ((.cse23 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 v_DerPreprocessor_12) .cse20 c_ULTIMATE.start_main_~m~0.base) .cse21 c_ULTIMATE.start_main_~head~0.base)))) (store .cse23 c_ULTIMATE.start_main_~list~0.base (store (select .cse23 c_ULTIMATE.start_main_~list~0.base) .cse19 v_ULTIMATE.start_main_~n~0.base_7))) c_ULTIMATE.start_main_~head~0.base) .cse22))) (store .cse14 .cse15 (let ((.cse16 (select .cse14 .cse15)) (.cse17 (select (select (let ((.cse18 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 v_DerPreprocessor_16) .cse20 c_ULTIMATE.start_main_~m~0.offset) .cse21 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse18 c_ULTIMATE.start_main_~list~0.base (store (select .cse18 c_ULTIMATE.start_main_~list~0.base) .cse19 v_ULTIMATE.start_main_~n~0.offset_7))) c_ULTIMATE.start_main_~head~0.base) .cse22))) (store .cse16 .cse17 (bvadd (select (select .cse14 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (select .cse16 .cse17))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_7)))))) (= (select .cse0 .cse25) c_ULTIMATE.start_main_~m~0.offset) (= c_ULTIMATE.start_main_~m~0.base (select .cse26 .cse25)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse26 .cse1) c_ULTIMATE.start_main_~head~0.base) (not .cse27) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_5 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_5 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse37 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse34 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse35 (bvadd v_ULTIMATE.start_main_~n~0.offset_5 (_ bv4 32))) (.cse36 (bvadd v_ULTIMATE.start_main_~n~0.offset_5 (_ bv8 32)))) (let ((.cse29 (let ((.cse39 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 ULTIMATE.start_main_~x~0) .cse35 v_DerPreprocessor_7) .cse36 v_DerPreprocessor_6)))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse34 v_DerPreprocessor_5)))) (.cse30 (select (select (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 v_DerPreprocessor_4) .cse35 c_ULTIMATE.start_main_~m~0.base) .cse36 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.base_5))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (let ((.cse31 (select .cse29 .cse30)) (.cse32 (select (select (let ((.cse33 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 v_DerPreprocessor_8) .cse35 c_ULTIMATE.start_main_~m~0.offset) .cse36 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse33 c_ULTIMATE.start_main_~list~0.base (store (select .cse33 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.offset_5))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (let ((.cse28 (select .cse31 .cse32))) (or (not (bvsle .cse28 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_5))) (bvslt (select (select (store .cse29 .cse30 (store .cse31 .cse32 (bvadd (select (select .cse29 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse28))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) .cse40 (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)) (or .cse40 .cse27))) is different from false [2021-11-07 01:26:48,943 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse25 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse26 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse1 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32))) (.cse40 (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset))) (.cse27 (= c_ULTIMATE.start_main_~head~0.base c_ULTIMATE.start_main_~m~0.base))) (and (= (select .cse0 .cse1) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_9 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_9 (_ BitVec 32))) (let ((.cse11 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse9 (bvadd v_ULTIMATE.start_main_~n~0.offset_9 (_ bv4 32))) (.cse10 (bvadd v_ULTIMATE.start_main_~n~0.offset_9 (_ bv8 32)))) (let ((.cse2 (let ((.cse13 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 ULTIMATE.start_main_~x~0) .cse9 v_DerPreprocessor_23) .cse10 v_DerPreprocessor_22)))) (store .cse13 c_ULTIMATE.start_main_~list~0.base (store (select .cse13 c_ULTIMATE.start_main_~list~0.base) .cse8 v_DerPreprocessor_21)))) (.cse3 (select (select (let ((.cse12 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 v_DerPreprocessor_20) .cse9 c_ULTIMATE.start_main_~m~0.base) .cse10 c_ULTIMATE.start_main_~head~0.base)))) (store .cse12 c_ULTIMATE.start_main_~list~0.base (store (select .cse12 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.base_9))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse4 (select .cse2 .cse3)) (.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_9 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_9) v_ULTIMATE.start_main_~n~0.offset_9 v_DerPreprocessor_24) .cse9 c_ULTIMATE.start_main_~m~0.offset) .cse10 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse7 c_ULTIMATE.start_main_~list~0.base (store (select .cse7 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.offset_9))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse6 (select .cse4 .cse5))) (or (bvslt (select (select (store .cse2 .cse3 (store .cse4 .cse5 (bvadd .cse6 (select (select .cse2 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_9)))) (not (bvsle .cse6 (_ bv100 32))))))))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_7 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_7 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse22 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse19 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse20 (bvadd v_ULTIMATE.start_main_~n~0.offset_7 (_ bv4 32))) (.cse21 (bvadd v_ULTIMATE.start_main_~n~0.offset_7 (_ bv8 32)))) (let ((.cse14 (let ((.cse24 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 ULTIMATE.start_main_~x~0) .cse20 v_DerPreprocessor_15) .cse21 v_DerPreprocessor_14)))) (store .cse24 c_ULTIMATE.start_main_~list~0.base (store (select .cse24 c_ULTIMATE.start_main_~list~0.base) .cse19 v_DerPreprocessor_13)))) (.cse15 (select (select (let ((.cse23 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 v_DerPreprocessor_12) .cse20 c_ULTIMATE.start_main_~m~0.base) .cse21 c_ULTIMATE.start_main_~head~0.base)))) (store .cse23 c_ULTIMATE.start_main_~list~0.base (store (select .cse23 c_ULTIMATE.start_main_~list~0.base) .cse19 v_ULTIMATE.start_main_~n~0.base_7))) c_ULTIMATE.start_main_~head~0.base) .cse22))) (store .cse14 .cse15 (let ((.cse16 (select .cse14 .cse15)) (.cse17 (select (select (let ((.cse18 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_7 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_7) v_ULTIMATE.start_main_~n~0.offset_7 v_DerPreprocessor_16) .cse20 c_ULTIMATE.start_main_~m~0.offset) .cse21 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse18 c_ULTIMATE.start_main_~list~0.base (store (select .cse18 c_ULTIMATE.start_main_~list~0.base) .cse19 v_ULTIMATE.start_main_~n~0.offset_7))) c_ULTIMATE.start_main_~head~0.base) .cse22))) (store .cse16 .cse17 (bvadd (select (select .cse14 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (select .cse16 .cse17))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_7)))))) (= (select .cse0 .cse25) c_ULTIMATE.start_main_~m~0.offset) (= c_ULTIMATE.start_main_~m~0.base (select .cse26 .cse25)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse26 .cse1) c_ULTIMATE.start_main_~head~0.base) (not .cse27) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_5 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_5 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse37 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse34 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse35 (bvadd v_ULTIMATE.start_main_~n~0.offset_5 (_ bv4 32))) (.cse36 (bvadd v_ULTIMATE.start_main_~n~0.offset_5 (_ bv8 32)))) (let ((.cse29 (let ((.cse39 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 ULTIMATE.start_main_~x~0) .cse35 v_DerPreprocessor_7) .cse36 v_DerPreprocessor_6)))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse34 v_DerPreprocessor_5)))) (.cse30 (select (select (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 v_DerPreprocessor_4) .cse35 c_ULTIMATE.start_main_~m~0.base) .cse36 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.base_5))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (let ((.cse31 (select .cse29 .cse30)) (.cse32 (select (select (let ((.cse33 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_5 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_5) v_ULTIMATE.start_main_~n~0.offset_5 v_DerPreprocessor_8) .cse35 c_ULTIMATE.start_main_~m~0.offset) .cse36 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse33 c_ULTIMATE.start_main_~list~0.base (store (select .cse33 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.offset_5))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (let ((.cse28 (select .cse31 .cse32))) (or (not (bvsle .cse28 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_5))) (bvslt (select (select (store .cse29 .cse30 (store .cse31 .cse32 (bvadd (select (select .cse29 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse28))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) .cse40 (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)) (or .cse40 .cse27))) is different from true [2021-11-07 01:27:00,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:27:00,727 INFO L93 Difference]: Finished difference Result 53 states and 74 transitions. [2021-11-07 01:27:00,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 01:27:00,728 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 30 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 01:27:00,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:27:00,729 INFO L225 Difference]: With dead ends: 53 [2021-11-07 01:27:00,729 INFO L226 Difference]: Without dead ends: 46 [2021-11-07 01:27:00,730 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=256, Invalid=1015, Unknown=5, NotChecked=284, Total=1560 [2021-11-07 01:27:00,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-07 01:27:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2021-11-07 01:27:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 33 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:00,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2021-11-07 01:27:00,738 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 12 [2021-11-07 01:27:00,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:27:00,739 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2021-11-07 01:27:00,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 30 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:00,739 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2021-11-07 01:27:00,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:27:00,740 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:27:00,740 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:27:00,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:00,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:01,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:01,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:27:01,341 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:27:01,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:27:01,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1483344674, now seen corresponding path program 1 times [2021-11-07 01:27:01,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:27:01,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642334461] [2021-11-07 01:27:01,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:27:01,342 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:27:01,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:27:01,343 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:27:01,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:27:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:27:01,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-07 01:27:01,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:27:01,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:01,717 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-07 01:27:01,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 38 [2021-11-07 01:27:01,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:01,728 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:27:01,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2021-11-07 01:27:01,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:01,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:27:01,804 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:27:01,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-07 01:27:01,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:01,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:27:02,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:02,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-11-07 01:27:02,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:03,814 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-07 01:27:03,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 245 treesize of output 227 [2021-11-07 01:27:03,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:03,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-07 01:27:03,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:04,234 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-07 01:27:04,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 274 treesize of output 238 [2021-11-07 01:27:04,410 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-07 01:27:04,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 276 treesize of output 243 [2021-11-07 01:27:04,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:04,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-11-07 01:27:04,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:04,499 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-07 01:27:04,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 225 treesize of output 177 [2021-11-07 01:27:04,505 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:27:04,542 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-07 01:27:04,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 150 treesize of output 158 [2021-11-07 01:27:05,281 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-07 01:27:05,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 173 treesize of output 112 [2021-11-07 01:27:05,405 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-07 01:27:05,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 case distinctions, treesize of input 100 treesize of output 90 [2021-11-07 01:27:05,428 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-07 01:27:05,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 75 [2021-11-07 01:27:05,813 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:27:05,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 39 [2021-11-07 01:27:05,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:27:05,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:27:06,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:06,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-07 01:27:06,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:06,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-07 01:27:06,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:06,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-07 01:27:06,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:06,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-07 01:27:06,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:06,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:27:09,248 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_11 (_ BitVec 32)) (v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_11 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_11)) (.cse8 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_11))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_31) .cse8 v_DerPreprocessor_30)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_29)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_28) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_11))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_32) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_11))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_11))))))))) is different from false [2021-11-07 01:27:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-07 01:27:12,028 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:27:12,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642334461] [2021-11-07 01:27:12,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642334461] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:27:12,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [495083062] [2021-11-07 01:27:12,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:27:12,028 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:27:12,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:27:12,029 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:27:12,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-07 01:27:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:27:12,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-07 01:27:12,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:27:12,485 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:27:12,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 19 treesize of output 21 [2021-11-07 01:27:12,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:12,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-07 01:27:12,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:12,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-07 01:27:12,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:12,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:27:12,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:12,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:27:13,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:13,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-11-07 01:27:13,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:14,741 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-07 01:27:14,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 241 treesize of output 223 [2021-11-07 01:27:15,340 INFO L354 Elim1Store]: treesize reduction 266, result has 9.5 percent of original size [2021-11-07 01:27:15,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 279 treesize of output 258 [2021-11-07 01:27:15,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:15,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-11-07 01:27:15,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:15,618 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-07 01:27:15,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 230 treesize of output 194 [2021-11-07 01:27:15,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:15,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:27:15,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:15,733 INFO L354 Elim1Store]: treesize reduction 180, result has 16.7 percent of original size [2021-11-07 01:27:15,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 173 [2021-11-07 01:27:15,734 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:27:15,771 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-07 01:27:15,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 146 treesize of output 154 [2021-11-07 01:27:16,491 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-07 01:27:16,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 101 [2021-11-07 01:27:16,536 INFO L354 Elim1Store]: treesize reduction 104, result has 9.6 percent of original size [2021-11-07 01:27:16,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 case distinctions, treesize of input 89 treesize of output 75 [2021-11-07 01:27:16,549 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-07 01:27:16,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 46 [2021-11-07 01:27:16,775 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:27:16,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 24 [2021-11-07 01:27:16,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:27:16,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:27:17,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:17,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 362 [2021-11-07 01:27:17,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:17,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 382 [2021-11-07 01:27:17,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:17,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 442 [2021-11-07 01:27:17,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:17,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 483 [2021-11-07 01:27:17,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:17,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 479 [2021-11-07 01:27:19,407 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_13 (_ BitVec 32)) (v_DerPreprocessor_40 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_13 (_ BitVec 32)) (v_DerPreprocessor_36 (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_37 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse8 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse5 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse6 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_13)) (.cse7 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_13))) (let ((.cse0 (let ((.cse10 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 ULTIMATE.start_main_~x~0) .cse6 v_DerPreprocessor_39) .cse7 v_DerPreprocessor_38)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse5 v_DerPreprocessor_37)))) (.cse1 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_36) .cse6 c_ULTIMATE.start_main_~m~0.base) .cse7 c_ULTIMATE.start_main_~head~0.base)))) (store .cse9 c_ULTIMATE.start_main_~list~0.base (store (select .cse9 c_ULTIMATE.start_main_~list~0.base) .cse5 v_ULTIMATE.start_main_~n~0.base_13))) c_ULTIMATE.start_main_~head~0.base) .cse8))) (store .cse0 .cse1 (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_40) .cse6 c_ULTIMATE.start_main_~m~0.offset) .cse7 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse4 c_ULTIMATE.start_main_~list~0.base (store (select .cse4 c_ULTIMATE.start_main_~list~0.base) .cse5 v_ULTIMATE.start_main_~n~0.offset_13))) c_ULTIMATE.start_main_~head~0.base) .cse8))) (store .cse2 .cse3 (bvadd (select .cse2 .cse3) (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_13))))))))) is different from false [2021-11-07 01:27:20,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-07 01:27:20,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [495083062] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:27:20,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126505296] [2021-11-07 01:27:20,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:27:20,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:27:20,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:27:20,386 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:27:20,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 01:27:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:27:20,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-07 01:27:20,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:27:20,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:20,831 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-07 01:27:20,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-07 01:27:20,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:20,874 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-07 01:27:20,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-07 01:27:20,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:20,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:27:21,000 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:27:21,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-07 01:27:21,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:21,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:27:21,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:21,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 272 [2021-11-07 01:27:21,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:23,607 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-07 01:27:23,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 272 treesize of output 254 [2021-11-07 01:27:24,131 INFO L354 Elim1Store]: treesize reduction 278, result has 9.2 percent of original size [2021-11-07 01:27:24,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 310 treesize of output 289 [2021-11-07 01:27:24,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:24,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-11-07 01:27:24,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:24,383 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-07 01:27:24,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 261 treesize of output 225 [2021-11-07 01:27:24,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:24,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 252 [2021-11-07 01:27:24,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:24,516 INFO L354 Elim1Store]: treesize reduction 224, result has 17.0 percent of original size [2021-11-07 01:27:24,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 252 treesize of output 214 [2021-11-07 01:27:24,517 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:27:24,556 INFO L354 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2021-11-07 01:27:24,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 198 [2021-11-07 01:27:25,708 INFO L354 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2021-11-07 01:27:25,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 191 treesize of output 130 [2021-11-07 01:27:25,810 INFO L354 Elim1Store]: treesize reduction 80, result has 30.4 percent of original size [2021-11-07 01:27:25,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 case distinctions, treesize of input 118 treesize of output 120 [2021-11-07 01:27:25,823 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-07 01:27:25,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 101 [2021-11-07 01:27:26,461 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:27:26,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 98 treesize of output 70 [2021-11-07 01:27:26,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:27:26,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:27:26,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:26,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-07 01:27:26,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:26,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-07 01:27:26,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:26,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-07 01:27:26,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:26,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-07 01:27:26,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:26,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:27:29,588 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_15 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_15 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_15)) (.cse8 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_15))) (let ((.cse0 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_47) .cse8 v_DerPreprocessor_46)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_45)))) (.cse1 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_44) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_15))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_48) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_15))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse4 (select .cse2 .cse3))) (or (bvslt (select (select (store .cse0 .cse1 (store .cse2 .cse3 (bvadd (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse4))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (bvsle .cse4 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_15))))))))) is different from false [2021-11-07 01:27:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2021-11-07 01:27:32,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126505296] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:27:32,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:27:32,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 8, 9, 9] total 30 [2021-11-07 01:27:32,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908530468] [2021-11-07 01:27:32,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 01:27:32,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:27:32,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 01:27:32,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=571, Unknown=3, NotChecked=156, Total=870 [2021-11-07 01:27:32,116 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand has 30 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 30 states have internal predecessors, (55), 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) [2021-11-07 01:27:37,416 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse14 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse27 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse1 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32))) (.cse40 (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset))) (.cse28 (= c_ULTIMATE.start_main_~head~0.base c_ULTIMATE.start_main_~m~0.base))) (and (= (select .cse0 .cse1) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_11 (_ BitVec 32)) (v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_11 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (let ((.cse11 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse9 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_11)) (.cse10 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_11))) (let ((.cse3 (let ((.cse13 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 ULTIMATE.start_main_~x~0) .cse9 v_DerPreprocessor_31) .cse10 v_DerPreprocessor_30)))) (store .cse13 c_ULTIMATE.start_main_~list~0.base (store (select .cse13 c_ULTIMATE.start_main_~list~0.base) .cse8 v_DerPreprocessor_29)))) (.cse4 (select (select (let ((.cse12 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_28) .cse9 c_ULTIMATE.start_main_~m~0.base) .cse10 c_ULTIMATE.start_main_~head~0.base)))) (store .cse12 c_ULTIMATE.start_main_~list~0.base (store (select .cse12 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.base_11))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse5 (select .cse3 .cse4)) (.cse6 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_32) .cse9 c_ULTIMATE.start_main_~m~0.offset) .cse10 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse7 c_ULTIMATE.start_main_~list~0.base (store (select .cse7 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.offset_11))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse2 (select .cse5 .cse6))) (or (not (bvsle .cse2 (_ bv100 32))) (bvslt (select (select (store .cse3 .cse4 (store .cse5 .cse6 (bvadd .cse2 (select (select .cse3 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_11))))))))) (= (select .cse0 .cse14) c_ULTIMATE.start_main_~m~0.offset) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_15 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_15 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32))) (let ((.cse24 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse21 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse22 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_15)) (.cse23 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_15))) (let ((.cse15 (let ((.cse26 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 ULTIMATE.start_main_~x~0) .cse22 v_DerPreprocessor_47) .cse23 v_DerPreprocessor_46)))) (store .cse26 c_ULTIMATE.start_main_~list~0.base (store (select .cse26 c_ULTIMATE.start_main_~list~0.base) .cse21 v_DerPreprocessor_45)))) (.cse16 (select (select (let ((.cse25 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_44) .cse22 c_ULTIMATE.start_main_~m~0.base) .cse23 c_ULTIMATE.start_main_~head~0.base)))) (store .cse25 c_ULTIMATE.start_main_~list~0.base (store (select .cse25 c_ULTIMATE.start_main_~list~0.base) .cse21 v_ULTIMATE.start_main_~n~0.base_15))) c_ULTIMATE.start_main_~head~0.base) .cse24))) (let ((.cse17 (select .cse15 .cse16)) (.cse18 (select (select (let ((.cse20 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_48) .cse22 c_ULTIMATE.start_main_~m~0.offset) .cse23 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse20 c_ULTIMATE.start_main_~list~0.base (store (select .cse20 c_ULTIMATE.start_main_~list~0.base) .cse21 v_ULTIMATE.start_main_~n~0.offset_15))) c_ULTIMATE.start_main_~head~0.base) .cse24))) (let ((.cse19 (select .cse17 .cse18))) (or (bvslt (select (select (store .cse15 .cse16 (store .cse17 .cse18 (bvadd (select (select .cse15 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse19))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (bvsle .cse19 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_15))))))))) (= c_ULTIMATE.start_main_~m~0.base (select .cse27 .cse14)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse27 .cse1) c_ULTIMATE.start_main_~head~0.base) (not .cse28) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_13 (_ BitVec 32)) (v_DerPreprocessor_40 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_13 (_ BitVec 32)) (v_DerPreprocessor_36 (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_37 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse37 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse34 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse35 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_13)) (.cse36 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_13))) (let ((.cse29 (let ((.cse39 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 ULTIMATE.start_main_~x~0) .cse35 v_DerPreprocessor_39) .cse36 v_DerPreprocessor_38)))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse34 v_DerPreprocessor_37)))) (.cse30 (select (select (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_36) .cse35 c_ULTIMATE.start_main_~m~0.base) .cse36 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.base_13))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (store .cse29 .cse30 (let ((.cse31 (select .cse29 .cse30)) (.cse32 (select (select (let ((.cse33 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_40) .cse35 c_ULTIMATE.start_main_~m~0.offset) .cse36 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse33 c_ULTIMATE.start_main_~list~0.base (store (select .cse33 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.offset_13))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (store .cse31 .cse32 (bvadd (select .cse31 .cse32) (select (select .cse29 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_13))))))))) .cse40 (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)) (or .cse40 .cse28))) is different from false [2021-11-07 01:27:39,431 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse14 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse27 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse1 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32))) (.cse40 (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset))) (.cse28 (= c_ULTIMATE.start_main_~head~0.base c_ULTIMATE.start_main_~m~0.base))) (and (= (select .cse0 .cse1) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_11 (_ BitVec 32)) (v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_11 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (let ((.cse11 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse9 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_11)) (.cse10 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_11))) (let ((.cse3 (let ((.cse13 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 ULTIMATE.start_main_~x~0) .cse9 v_DerPreprocessor_31) .cse10 v_DerPreprocessor_30)))) (store .cse13 c_ULTIMATE.start_main_~list~0.base (store (select .cse13 c_ULTIMATE.start_main_~list~0.base) .cse8 v_DerPreprocessor_29)))) (.cse4 (select (select (let ((.cse12 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_28) .cse9 c_ULTIMATE.start_main_~m~0.base) .cse10 c_ULTIMATE.start_main_~head~0.base)))) (store .cse12 c_ULTIMATE.start_main_~list~0.base (store (select .cse12 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.base_11))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse5 (select .cse3 .cse4)) (.cse6 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_11) v_ULTIMATE.start_main_~n~0.offset_11 v_DerPreprocessor_32) .cse9 c_ULTIMATE.start_main_~m~0.offset) .cse10 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse7 c_ULTIMATE.start_main_~list~0.base (store (select .cse7 c_ULTIMATE.start_main_~list~0.base) .cse8 v_ULTIMATE.start_main_~n~0.offset_11))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse2 (select .cse5 .cse6))) (or (not (bvsle .cse2 (_ bv100 32))) (bvslt (select (select (store .cse3 .cse4 (store .cse5 .cse6 (bvadd .cse2 (select (select .cse3 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_11))))))))) (= (select .cse0 .cse14) c_ULTIMATE.start_main_~m~0.offset) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_15 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_15 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32))) (let ((.cse24 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse21 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse22 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_15)) (.cse23 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_15))) (let ((.cse15 (let ((.cse26 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 ULTIMATE.start_main_~x~0) .cse22 v_DerPreprocessor_47) .cse23 v_DerPreprocessor_46)))) (store .cse26 c_ULTIMATE.start_main_~list~0.base (store (select .cse26 c_ULTIMATE.start_main_~list~0.base) .cse21 v_DerPreprocessor_45)))) (.cse16 (select (select (let ((.cse25 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_44) .cse22 c_ULTIMATE.start_main_~m~0.base) .cse23 c_ULTIMATE.start_main_~head~0.base)))) (store .cse25 c_ULTIMATE.start_main_~list~0.base (store (select .cse25 c_ULTIMATE.start_main_~list~0.base) .cse21 v_ULTIMATE.start_main_~n~0.base_15))) c_ULTIMATE.start_main_~head~0.base) .cse24))) (let ((.cse17 (select .cse15 .cse16)) (.cse18 (select (select (let ((.cse20 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_15) v_ULTIMATE.start_main_~n~0.offset_15 v_DerPreprocessor_48) .cse22 c_ULTIMATE.start_main_~m~0.offset) .cse23 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse20 c_ULTIMATE.start_main_~list~0.base (store (select .cse20 c_ULTIMATE.start_main_~list~0.base) .cse21 v_ULTIMATE.start_main_~n~0.offset_15))) c_ULTIMATE.start_main_~head~0.base) .cse24))) (let ((.cse19 (select .cse17 .cse18))) (or (bvslt (select (select (store .cse15 .cse16 (store .cse17 .cse18 (bvadd (select (select .cse15 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse19))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (bvsle .cse19 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_15))))))))) (= c_ULTIMATE.start_main_~m~0.base (select .cse27 .cse14)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse27 .cse1) c_ULTIMATE.start_main_~head~0.base) (not .cse28) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_13 (_ BitVec 32)) (v_DerPreprocessor_40 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_13 (_ BitVec 32)) (v_DerPreprocessor_36 (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_37 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse37 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse34 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse35 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_13)) (.cse36 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_13))) (let ((.cse29 (let ((.cse39 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 ULTIMATE.start_main_~x~0) .cse35 v_DerPreprocessor_39) .cse36 v_DerPreprocessor_38)))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse34 v_DerPreprocessor_37)))) (.cse30 (select (select (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_36) .cse35 c_ULTIMATE.start_main_~m~0.base) .cse36 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.base_13))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (store .cse29 .cse30 (let ((.cse31 (select .cse29 .cse30)) (.cse32 (select (select (let ((.cse33 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_13) v_ULTIMATE.start_main_~n~0.offset_13 v_DerPreprocessor_40) .cse35 c_ULTIMATE.start_main_~m~0.offset) .cse36 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse33 c_ULTIMATE.start_main_~list~0.base (store (select .cse33 c_ULTIMATE.start_main_~list~0.base) .cse34 v_ULTIMATE.start_main_~n~0.offset_13))) c_ULTIMATE.start_main_~head~0.base) .cse37))) (store .cse31 .cse32 (bvadd (select .cse31 .cse32) (select (select .cse29 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset))))))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_13))))))))) .cse40 (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)) (or .cse40 .cse28))) is different from true [2021-11-07 01:27:49,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:27:49,132 INFO L93 Difference]: Finished difference Result 62 states and 86 transitions. [2021-11-07 01:27:49,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 01:27:49,133 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 30 states have internal predecessors, (55), 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 14 [2021-11-07 01:27:49,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:27:49,133 INFO L225 Difference]: With dead ends: 62 [2021-11-07 01:27:49,134 INFO L226 Difference]: Without dead ends: 55 [2021-11-07 01:27:49,135 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=256, Invalid=1015, Unknown=5, NotChecked=284, Total=1560 [2021-11-07 01:27:49,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-07 01:27:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 32. [2021-11-07 01:27:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 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) [2021-11-07 01:27:49,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2021-11-07 01:27:49,143 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 14 [2021-11-07 01:27:49,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:27:49,143 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-11-07 01:27:49,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 30 states have internal predecessors, (55), 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) [2021-11-07 01:27:49,144 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2021-11-07 01:27:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:27:49,144 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:27:49,145 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:27:49,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:27:49,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:49,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:49,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:27:49,760 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:27:49,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:27:49,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2110558044, now seen corresponding path program 2 times [2021-11-07 01:27:49,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:27:49,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919111380] [2021-11-07 01:27:49,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:27:49,761 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:27:49,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:27:49,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:27:49,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:27:50,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:27:50,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:27:50,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-07 01:27:50,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:27:50,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:50,405 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-07 01:27:50,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-07 01:27:50,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:50,451 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-07 01:27:50,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-07 01:27:50,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:50,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:27:50,551 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:27:50,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-07 01:27:50,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:50,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:27:50,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:50,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-07 01:27:50,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:50,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:50,873 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:27:53,377 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-07 01:27:53,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 273 treesize of output 255 [2021-11-07 01:27:53,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:53,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-07 01:27:53,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:53,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:53,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:27:53,885 INFO L354 Elim1Store]: treesize reduction 466, result has 10.2 percent of original size [2021-11-07 01:27:53,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 308 treesize of output 284 [2021-11-07 01:27:54,065 INFO L354 Elim1Store]: treesize reduction 362, result has 8.6 percent of original size [2021-11-07 01:27:54,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 310 treesize of output 277 [2021-11-07 01:27:54,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:54,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-11-07 01:27:54,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:27:54,209 INFO L354 Elim1Store]: treesize reduction 224, result has 17.0 percent of original size [2021-11-07 01:27:54,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 259 treesize of output 221 [2021-11-07 01:27:54,210 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:27:54,290 INFO L354 Elim1Store]: treesize reduction 62, result has 37.4 percent of original size [2021-11-07 01:27:54,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 197 treesize of output 220 [2021-11-07 01:27:54,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:27:54,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 380 [2021-11-07 01:27:55,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:28:00,276 WARN L207 SmtUtils]: Spent 5.27 s on a formula simplification. DAG size of input: 149 DAG size of output: 38 [2021-11-07 01:28:00,277 INFO L354 Elim1Store]: treesize reduction 1040, result has 5.9 percent of original size [2021-11-07 01:28:00,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 380 treesize of output 335 [2021-11-07 01:28:00,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:00,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 376 [2021-11-07 01:28:00,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:28:01,196 INFO L354 Elim1Store]: treesize reduction 956, result has 6.5 percent of original size [2021-11-07 01:28:01,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 376 treesize of output 346 [2021-11-07 01:28:01,398 INFO L354 Elim1Store]: treesize reduction 362, result has 8.6 percent of original size [2021-11-07 01:28:01,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 359 treesize of output 326 [2021-11-07 01:28:01,418 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:01,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-07 01:28:01,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:28:01,598 INFO L354 Elim1Store]: treesize reduction 224, result has 17.0 percent of original size [2021-11-07 01:28:01,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 308 treesize of output 270 [2021-11-07 01:28:01,599 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:28:01,667 INFO L354 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2021-11-07 01:28:01,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 246 treesize of output 262 [2021-11-07 01:28:11,723 INFO L354 Elim1Store]: treesize reduction 226, result has 0.4 percent of original size [2021-11-07 01:28:11,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 598 treesize of output 335 [2021-11-07 01:28:11,749 INFO L354 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2021-11-07 01:28:11,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 259 treesize of output 103 [2021-11-07 01:28:11,830 INFO L354 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2021-11-07 01:28:11,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 65 treesize of output 68 [2021-11-07 01:28:12,468 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:28:12,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 98 treesize of output 70 [2021-11-07 01:28:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:28:12,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:28:13,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:13,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-07 01:28:13,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:13,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-07 01:28:13,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:13,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-07 01:28:13,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:13,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-07 01:28:13,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:13,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:28:16,240 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse8 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_58) .cse8 v_DerPreprocessor_57)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_56)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_17))) (not (bvsle .cse0 (_ bv100 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-07 01:28:17,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:17,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1939 [2021-11-07 01:28:17,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:17,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2119 [2021-11-07 01:28:17,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:17,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2499 [2021-11-07 01:28:17,285 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:17,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2796 [2021-11-07 01:28:17,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:28:17,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2852 [2021-11-07 01:28:40,934 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_18 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_18 (_ BitVec 32)) (v_DerPreprocessor_60 (_ BitVec 32)) (v_DerPreprocessor_61 (_ BitVec 32)) (v_DerPreprocessor_64 (_ BitVec 32)) (v_DerPreprocessor_62 (_ BitVec 32)) (v_DerPreprocessor_63 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse9 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_18)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_18))) (let ((.cse0 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_63) .cse12 v_DerPreprocessor_62)))) (store .cse19 c_ULTIMATE.start_main_~list~0.base (store (select .cse19 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_61))))) (store .cse18 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse18 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_ULTIMATE.start_main_~x~0_23) .cse8 v_DerPreprocessor_58) .cse9 v_DerPreprocessor_57))))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_56)))) (.cse1 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_60) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse16 c_ULTIMATE.start_main_~list~0.base (store (select .cse16 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_18))))) (store .cse15 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse15 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse8 c_ULTIMATE.start_main_~m~0.base) .cse9 c_ULTIMATE.start_main_~head~0.base))))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_64) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_18))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse8 c_ULTIMATE.start_main_~m~0.offset) .cse9 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse4 (select .cse2 .cse3))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_18 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_17)))) (bvslt (select (select (store .cse0 .cse1 (store .cse2 .cse3 (bvadd .cse4 (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_18))) (not (bvsle .cse4 (_ bv100 32))))))))) is different from false [2021-11-07 01:29:02,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-11-07 01:29:02,661 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:29:02,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919111380] [2021-11-07 01:29:02,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919111380] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:29:02,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1563737756] [2021-11-07 01:29:02,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:29:02,662 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:29:02,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:29:02,663 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:29:02,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 01:29:03,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:29:03,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:29:03,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-07 01:29:03,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:29:03,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:03,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:29:03,487 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:29:03,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 19 treesize of output 21 [2021-11-07 01:29:03,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:03,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:29:03,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:03,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-07 01:29:03,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:03,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-07 01:29:03,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:03,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-07 01:29:03,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:03,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:03,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:29:05,554 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-07 01:29:05,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 247 treesize of output 229 [2021-11-07 01:29:05,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:05,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 276 [2021-11-07 01:29:05,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:05,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:05,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:29:05,963 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-07 01:29:05,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 276 treesize of output 240 [2021-11-07 01:29:06,138 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-07 01:29:06,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 284 treesize of output 251 [2021-11-07 01:29:06,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:06,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-11-07 01:29:06,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:06,262 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-07 01:29:06,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 233 treesize of output 185 [2021-11-07 01:29:06,263 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:29:06,368 INFO L354 Elim1Store]: treesize reduction 62, result has 37.4 percent of original size [2021-11-07 01:29:06,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 158 treesize of output 181 [2021-11-07 01:29:07,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:07,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-07 01:29:07,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:07,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:29:07,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:07,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:07,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:29:09,405 INFO L354 Elim1Store]: treesize reduction 628, result has 6.4 percent of original size [2021-11-07 01:29:09,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 339 treesize of output 319 [2021-11-07 01:29:09,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:09,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:09,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:10,069 INFO L354 Elim1Store]: treesize reduction 132, result has 11.4 percent of original size [2021-11-07 01:29:10,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 293 treesize of output 257 [2021-11-07 01:29:10,090 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:29:10,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:10,092 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:29:10,522 INFO L354 Elim1Store]: treesize reduction 326, result has 9.2 percent of original size [2021-11-07 01:29:10,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 278 treesize of output 236 [2021-11-07 01:29:10,627 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-07 01:29:10,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 281 treesize of output 264 [2021-11-07 01:29:10,643 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-07 01:29:10,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 265 treesize of output 231 [2021-11-07 01:29:10,644 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:29:10,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:29:10,661 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-07 01:29:10,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 232 treesize of output 212 [2021-11-07 01:29:10,716 INFO L354 Elim1Store]: treesize reduction 46, result has 31.3 percent of original size [2021-11-07 01:29:10,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 213 treesize of output 219 [2021-11-07 01:29:12,956 INFO L354 Elim1Store]: treesize reduction 544, result has 10.1 percent of original size [2021-11-07 01:29:12,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 610 treesize of output 306 [2021-11-07 01:29:12,983 INFO L354 Elim1Store]: treesize reduction 250, result has 0.4 percent of original size [2021-11-07 01:29:12,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 505 treesize of output 205 [2021-11-07 01:29:13,012 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-11-07 01:29:13,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 187 treesize of output 101 [2021-11-07 01:29:13,082 INFO L354 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2021-11-07 01:29:13,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 case distinctions, treesize of input 61 treesize of output 43 [2021-11-07 01:29:13,085 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:29:13,476 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-07 01:29:13,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 54 treesize of output 38 [2021-11-07 01:29:13,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:29:13,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:29:13,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:13,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:29:13,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:13,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-07 01:29:13,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:13,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 439 [2021-11-07 01:29:13,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:13,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 503 [2021-11-07 01:29:13,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:13,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 544 [2021-11-07 01:29:13,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:13,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 546 [2021-11-07 01:29:18,524 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32))) (let ((.cse7 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset))) (let ((.cse1 (let ((.cse9 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) ULTIMATE.start_main_~x~0) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72)))) (store .cse9 c_ULTIMATE.start_main_~list~0.base (store (select .cse9 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_71)))) (.cse2 (select (select (let ((.cse8 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base)))) (store .cse8 c_ULTIMATE.start_main_~list~0.base (store (select .cse8 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse7))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse7))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt ULTIMATE.start_main_~x~0 (_ bv10 32))) (not (bvsgt ULTIMATE.start_main_~x~0 (_ bv0 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-07 01:29:20,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:20,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1850 [2021-11-07 01:29:20,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:20,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2030 [2021-11-07 01:29:20,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:20,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2410 [2021-11-07 01:29:20,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:20,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2707 [2021-11-07 01:29:20,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:29:20,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2763 [2021-11-07 01:30:11,817 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_27 (_ BitVec 32)) (v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_DerPreprocessor_75 (_ BitVec 32)) (v_DerPreprocessor_76 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32)) (v_DerPreprocessor_79 (_ BitVec 32)) (v_DerPreprocessor_77 (_ BitVec 32)) (v_DerPreprocessor_78 (_ BitVec 32))) (let ((.cse11 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse9 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_21)) (.cse10 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_21))) (let ((.cse0 (let ((.cse15 (let ((.cse16 (let ((.cse17 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 ULTIMATE.start_main_~x~0) .cse9 v_DerPreprocessor_78) .cse10 v_DerPreprocessor_77)))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_76))))) (store .cse16 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse16 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_ULTIMATE.start_main_~x~0_27) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72))))) (store .cse15 c_ULTIMATE.start_main_~list~0.base (store (select .cse15 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_71)))) (.cse1 (select (select (let ((.cse12 (let ((.cse13 (let ((.cse14 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_75) .cse9 c_ULTIMATE.start_main_~m~0.base) .cse10 c_ULTIMATE.start_main_~head~0.base)))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_21))))) (store .cse13 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse13 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base))))) (store .cse12 c_ULTIMATE.start_main_~list~0.base (store (select .cse12 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse8 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_79) .cse9 c_ULTIMATE.start_main_~m~0.offset) .cse10 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse8 c_ULTIMATE.start_main_~list~0.base (store (select .cse8 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_21))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse11))) (let ((.cse4 (select .cse2 .cse3))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_21))) (bvslt (select (select (store .cse0 .cse1 (store .cse2 .cse3 (bvadd .cse4 (select (select .cse0 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_21 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt v_ULTIMATE.start_main_~x~0_27 (_ bv10 32))) (not (bvsle .cse4 (_ bv100 32))) (not (bvsgt v_ULTIMATE.start_main_~x~0_27 (_ bv0 32))))))))) is different from false [2021-11-07 01:30:57,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-11-07 01:30:57,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1563737756] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:30:57,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642729855] [2021-11-07 01:30:57,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:30:57,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:30:57,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:30:57,253 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:30:57,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 01:30:58,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:30:58,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:30:58,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-07 01:30:58,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:30:58,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:30:58,675 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-07 01:30:58,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 38 [2021-11-07 01:30:58,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:30:58,683 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:30:58,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2021-11-07 01:30:58,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:30:58,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:30:58,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:30:58,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:30:58,793 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:30:58,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-07 01:30:59,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:30:59,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-11-07 01:30:59,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:30:59,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:30:59,157 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:01,584 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-07 01:31:01,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 254 treesize of output 236 [2021-11-07 01:31:01,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:01,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-11-07 01:31:01,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:01,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:01,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:01,935 INFO L354 Elim1Store]: treesize reduction 466, result has 10.2 percent of original size [2021-11-07 01:31:01,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 289 treesize of output 265 [2021-11-07 01:31:02,111 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-07 01:31:02,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 291 treesize of output 258 [2021-11-07 01:31:02,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:02,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-07 01:31:02,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:02,212 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-07 01:31:02,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 240 treesize of output 192 [2021-11-07 01:31:02,213 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:31:02,290 INFO L354 Elim1Store]: treesize reduction 62, result has 37.4 percent of original size [2021-11-07 01:31:02,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 165 treesize of output 188 [2021-11-07 01:31:05,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:05,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 362 [2021-11-07 01:31:05,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:10,215 WARN L207 SmtUtils]: Spent 5.18 s on a formula simplification. DAG size of input: 149 DAG size of output: 38 [2021-11-07 01:31:10,216 INFO L354 Elim1Store]: treesize reduction 1040, result has 5.9 percent of original size [2021-11-07 01:31:10,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 362 treesize of output 317 [2021-11-07 01:31:10,228 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:10,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 358 [2021-11-07 01:31:10,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:11,013 INFO L354 Elim1Store]: treesize reduction 956, result has 6.5 percent of original size [2021-11-07 01:31:11,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 358 treesize of output 328 [2021-11-07 01:31:11,221 INFO L354 Elim1Store]: treesize reduction 358, result has 8.7 percent of original size [2021-11-07 01:31:11,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 345 treesize of output 312 [2021-11-07 01:31:11,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:11,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-11-07 01:31:11,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:11,345 INFO L354 Elim1Store]: treesize reduction 188, result has 16.1 percent of original size [2021-11-07 01:31:11,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 294 treesize of output 246 [2021-11-07 01:31:11,347 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:31:11,419 INFO L354 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2021-11-07 01:31:11,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 219 treesize of output 235 [2021-11-07 01:31:33,759 INFO L354 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2021-11-07 01:31:33,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 372 treesize of output 166 [2021-11-07 01:31:33,874 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-11-07 01:31:33,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 case distinctions, treesize of input 130 treesize of output 120 [2021-11-07 01:31:33,895 INFO L354 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2021-11-07 01:31:33,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 131 treesize of output 93 [2021-11-07 01:31:34,450 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:31:34,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 39 [2021-11-07 01:31:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:31:34,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:31:34,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:34,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-07 01:31:34,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:34,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-07 01:31:34,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:34,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-07 01:31:34,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:34,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-07 01:31:34,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:34,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:31:37,732 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse8 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_89) .cse8 v_DerPreprocessor_88)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_87)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_23))) (not (bvsle .cse0 (_ bv100 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse0))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-07 01:31:38,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:38,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1940 [2021-11-07 01:31:38,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:38,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2120 [2021-11-07 01:31:38,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:38,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2500 [2021-11-07 01:31:38,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:38,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2797 [2021-11-07 01:31:38,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:38,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2853 [2021-11-07 01:32:05,391 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_31 (_ BitVec 32)) (v_DerPreprocessor_93 (_ BitVec 32)) (v_DerPreprocessor_94 (_ BitVec 32)) (v_DerPreprocessor_91 (_ BitVec 32)) (v_DerPreprocessor_92 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_DerPreprocessor_95 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse9 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_24)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_24))) (let ((.cse1 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_94) .cse12 v_DerPreprocessor_93)))) (store .cse19 c_ULTIMATE.start_main_~list~0.base (store (select .cse19 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_92))))) (store .cse18 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse18 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_ULTIMATE.start_main_~x~0_31) .cse8 v_DerPreprocessor_89) .cse9 v_DerPreprocessor_88))))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_87)))) (.cse2 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_91) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse16 c_ULTIMATE.start_main_~list~0.base (store (select .cse16 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_24))))) (store .cse15 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse15 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse8 c_ULTIMATE.start_main_~m~0.base) .cse9 c_ULTIMATE.start_main_~head~0.base))))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_95) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_24))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse8 c_ULTIMATE.start_main_~m~0.offset) .cse9 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_24))) (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_24 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_23))))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-07 01:32:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-11-07 01:32:28,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642729855] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:32:28,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:32:28,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10, 10] total 35 [2021-11-07 01:32:28,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527012561] [2021-11-07 01:32:28,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-07 01:32:28,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:32:28,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-07 01:32:28,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=657, Unknown=18, NotChecked=354, Total=1190 [2021-11-07 01:32:28,899 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand has 35 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 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) [2021-11-07 01:32:35,765 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse20 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse42 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse43 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse21 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32)))) (and (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_31 (_ BitVec 32)) (v_DerPreprocessor_93 (_ BitVec 32)) (v_DerPreprocessor_94 (_ BitVec 32)) (v_DerPreprocessor_91 (_ BitVec 32)) (v_DerPreprocessor_92 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_DerPreprocessor_95 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse9 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_24)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_24))) (let ((.cse1 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_94) .cse12 v_DerPreprocessor_93)))) (store .cse19 c_ULTIMATE.start_main_~list~0.base (store (select .cse19 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_92))))) (store .cse18 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse18 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_ULTIMATE.start_main_~x~0_31) .cse8 v_DerPreprocessor_89) .cse9 v_DerPreprocessor_88))))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_87)))) (.cse2 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_91) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse16 c_ULTIMATE.start_main_~list~0.base (store (select .cse16 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_24))))) (store .cse15 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse15 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse8 c_ULTIMATE.start_main_~m~0.base) .cse9 c_ULTIMATE.start_main_~head~0.base))))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_95) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_24))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse8 c_ULTIMATE.start_main_~m~0.offset) .cse9 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_24))) (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_24 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_23))))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (= (select .cse20 .cse21) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_18 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_18 (_ BitVec 32)) (v_DerPreprocessor_60 (_ BitVec 32)) (v_DerPreprocessor_61 (_ BitVec 32)) (v_DerPreprocessor_64 (_ BitVec 32)) (v_DerPreprocessor_62 (_ BitVec 32)) (v_DerPreprocessor_63 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse35 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse30 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse31 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse28 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse33 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_18)) (.cse34 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_18))) (let ((.cse22 (let ((.cse39 (let ((.cse40 (let ((.cse41 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 ULTIMATE.start_main_~x~0) .cse33 v_DerPreprocessor_63) .cse34 v_DerPreprocessor_62)))) (store .cse41 c_ULTIMATE.start_main_~list~0.base (store (select .cse41 c_ULTIMATE.start_main_~list~0.base) .cse28 v_DerPreprocessor_61))))) (store .cse40 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse40 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_ULTIMATE.start_main_~x~0_23) .cse30 v_DerPreprocessor_58) .cse31 v_DerPreprocessor_57))))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse28 v_DerPreprocessor_56)))) (.cse23 (select (select (let ((.cse36 (let ((.cse37 (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_60) .cse33 c_ULTIMATE.start_main_~m~0.base) .cse34 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.base_18))))) (store .cse37 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse37 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse30 c_ULTIMATE.start_main_~m~0.base) .cse31 c_ULTIMATE.start_main_~head~0.base))))) (store .cse36 c_ULTIMATE.start_main_~list~0.base (store (select .cse36 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse35))) (let ((.cse24 (select .cse22 .cse23)) (.cse25 (select (select (let ((.cse27 (let ((.cse29 (let ((.cse32 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_64) .cse33 c_ULTIMATE.start_main_~m~0.offset) .cse34 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse32 c_ULTIMATE.start_main_~list~0.base (store (select .cse32 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.offset_18))))) (store .cse29 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse29 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse30 c_ULTIMATE.start_main_~m~0.offset) .cse31 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse27 c_ULTIMATE.start_main_~list~0.base (store (select .cse27 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse35))) (let ((.cse26 (select .cse24 .cse25))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_18 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_17)))) (bvslt (select (select (store .cse22 .cse23 (store .cse24 .cse25 (bvadd .cse26 (select (select .cse22 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_18))) (not (bvsle .cse26 (_ bv100 32))))))))) (= (select .cse20 .cse42) c_ULTIMATE.start_main_~m~0.offset) (= c_ULTIMATE.start_main_~m~0.base (select .cse43 .cse42)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse43 .cse21) c_ULTIMATE.start_main_~head~0.base) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_27 (_ BitVec 32)) (v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_DerPreprocessor_75 (_ BitVec 32)) (v_DerPreprocessor_76 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32)) (v_DerPreprocessor_79 (_ BitVec 32)) (v_DerPreprocessor_77 (_ BitVec 32)) (v_DerPreprocessor_78 (_ BitVec 32))) (let ((.cse55 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse50 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse53 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_21)) (.cse54 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_21))) (let ((.cse44 (let ((.cse59 (let ((.cse60 (let ((.cse61 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 ULTIMATE.start_main_~x~0) .cse53 v_DerPreprocessor_78) .cse54 v_DerPreprocessor_77)))) (store .cse61 c_ULTIMATE.start_main_~list~0.base (store (select .cse61 c_ULTIMATE.start_main_~list~0.base) .cse50 v_DerPreprocessor_76))))) (store .cse60 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse60 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_ULTIMATE.start_main_~x~0_27) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72))))) (store .cse59 c_ULTIMATE.start_main_~list~0.base (store (select .cse59 c_ULTIMATE.start_main_~list~0.base) .cse50 v_DerPreprocessor_71)))) (.cse45 (select (select (let ((.cse56 (let ((.cse57 (let ((.cse58 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_75) .cse53 c_ULTIMATE.start_main_~m~0.base) .cse54 c_ULTIMATE.start_main_~head~0.base)))) (store .cse58 c_ULTIMATE.start_main_~list~0.base (store (select .cse58 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.base_21))))) (store .cse57 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse57 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base))))) (store .cse56 c_ULTIMATE.start_main_~list~0.base (store (select .cse56 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse55))) (let ((.cse46 (select .cse44 .cse45)) (.cse47 (select (select (let ((.cse49 (let ((.cse51 (let ((.cse52 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_79) .cse53 c_ULTIMATE.start_main_~m~0.offset) .cse54 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse52 c_ULTIMATE.start_main_~list~0.base (store (select .cse52 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.offset_21))))) (store .cse51 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse51 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset))))) (store .cse49 c_ULTIMATE.start_main_~list~0.base (store (select .cse49 c_ULTIMATE.start_main_~list~0.base) .cse50 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse55))) (let ((.cse48 (select .cse46 .cse47))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_21))) (bvslt (select (select (store .cse44 .cse45 (store .cse46 .cse47 (bvadd .cse48 (select (select .cse44 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_21 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt v_ULTIMATE.start_main_~x~0_27 (_ bv10 32))) (not (bvsle .cse48 (_ bv100 32))) (not (bvsgt v_ULTIMATE.start_main_~x~0_27 (_ bv0 32))))))))) (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset)) (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)))) is different from false [2021-11-07 01:32:37,778 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse20 (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base)) (.cse42 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse43 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base)) (.cse21 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv8 32)))) (and (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_24 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_31 (_ BitVec 32)) (v_DerPreprocessor_93 (_ BitVec 32)) (v_DerPreprocessor_94 (_ BitVec 32)) (v_DerPreprocessor_91 (_ BitVec 32)) (v_DerPreprocessor_92 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_DerPreprocessor_95 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse9 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_24)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_24))) (let ((.cse1 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_94) .cse12 v_DerPreprocessor_93)))) (store .cse19 c_ULTIMATE.start_main_~list~0.base (store (select .cse19 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_92))))) (store .cse18 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse18 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_ULTIMATE.start_main_~x~0_31) .cse8 v_DerPreprocessor_89) .cse9 v_DerPreprocessor_88))))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_87)))) (.cse2 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_91) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse16 c_ULTIMATE.start_main_~list~0.base (store (select .cse16 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_24))))) (store .cse15 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse15 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse8 c_ULTIMATE.start_main_~m~0.base) .cse9 c_ULTIMATE.start_main_~head~0.base))))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_24) v_ULTIMATE.start_main_~n~0.offset_24 v_DerPreprocessor_95) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_24))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse8 c_ULTIMATE.start_main_~m~0.offset) .cse9 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_24))) (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_24 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_23))))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (= (select .cse20 .cse21) c_ULTIMATE.start_main_~head~0.offset) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_18 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_18 (_ BitVec 32)) (v_DerPreprocessor_60 (_ BitVec 32)) (v_DerPreprocessor_61 (_ BitVec 32)) (v_DerPreprocessor_64 (_ BitVec 32)) (v_DerPreprocessor_62 (_ BitVec 32)) (v_DerPreprocessor_63 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse35 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse30 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse31 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse28 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse33 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_18)) (.cse34 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_18))) (let ((.cse22 (let ((.cse39 (let ((.cse40 (let ((.cse41 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 ULTIMATE.start_main_~x~0) .cse33 v_DerPreprocessor_63) .cse34 v_DerPreprocessor_62)))) (store .cse41 c_ULTIMATE.start_main_~list~0.base (store (select .cse41 c_ULTIMATE.start_main_~list~0.base) .cse28 v_DerPreprocessor_61))))) (store .cse40 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse40 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_ULTIMATE.start_main_~x~0_23) .cse30 v_DerPreprocessor_58) .cse31 v_DerPreprocessor_57))))) (store .cse39 c_ULTIMATE.start_main_~list~0.base (store (select .cse39 c_ULTIMATE.start_main_~list~0.base) .cse28 v_DerPreprocessor_56)))) (.cse23 (select (select (let ((.cse36 (let ((.cse37 (let ((.cse38 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_60) .cse33 c_ULTIMATE.start_main_~m~0.base) .cse34 c_ULTIMATE.start_main_~head~0.base)))) (store .cse38 c_ULTIMATE.start_main_~list~0.base (store (select .cse38 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.base_18))))) (store .cse37 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse37 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse30 c_ULTIMATE.start_main_~m~0.base) .cse31 c_ULTIMATE.start_main_~head~0.base))))) (store .cse36 c_ULTIMATE.start_main_~list~0.base (store (select .cse36 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse35))) (let ((.cse24 (select .cse22 .cse23)) (.cse25 (select (select (let ((.cse27 (let ((.cse29 (let ((.cse32 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_18 v_DerPreprocessor_64) .cse33 c_ULTIMATE.start_main_~m~0.offset) .cse34 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse32 c_ULTIMATE.start_main_~list~0.base (store (select .cse32 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.offset_18))))) (store .cse29 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse29 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse30 c_ULTIMATE.start_main_~m~0.offset) .cse31 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse27 c_ULTIMATE.start_main_~list~0.base (store (select .cse27 c_ULTIMATE.start_main_~list~0.base) .cse28 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse35))) (let ((.cse26 (select .cse24 .cse25))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_18 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_17)))) (bvslt (select (select (store .cse22 .cse23 (store .cse24 .cse25 (bvadd .cse26 (select (select .cse22 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_18))) (not (bvsle .cse26 (_ bv100 32))))))))) (= (select .cse20 .cse42) c_ULTIMATE.start_main_~m~0.offset) (= c_ULTIMATE.start_main_~m~0.base (select .cse43 .cse42)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse43 .cse21) c_ULTIMATE.start_main_~head~0.base) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base))) (_ bv1 1))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_27 (_ BitVec 32)) (v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_DerPreprocessor_75 (_ BitVec 32)) (v_DerPreprocessor_76 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32)) (v_DerPreprocessor_79 (_ BitVec 32)) (v_DerPreprocessor_77 (_ BitVec 32)) (v_DerPreprocessor_78 (_ BitVec 32))) (let ((.cse55 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse50 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse53 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_21)) (.cse54 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_21))) (let ((.cse44 (let ((.cse59 (let ((.cse60 (let ((.cse61 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 ULTIMATE.start_main_~x~0) .cse53 v_DerPreprocessor_78) .cse54 v_DerPreprocessor_77)))) (store .cse61 c_ULTIMATE.start_main_~list~0.base (store (select .cse61 c_ULTIMATE.start_main_~list~0.base) .cse50 v_DerPreprocessor_76))))) (store .cse60 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse60 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_ULTIMATE.start_main_~x~0_27) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72))))) (store .cse59 c_ULTIMATE.start_main_~list~0.base (store (select .cse59 c_ULTIMATE.start_main_~list~0.base) .cse50 v_DerPreprocessor_71)))) (.cse45 (select (select (let ((.cse56 (let ((.cse57 (let ((.cse58 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_75) .cse53 c_ULTIMATE.start_main_~m~0.base) .cse54 c_ULTIMATE.start_main_~head~0.base)))) (store .cse58 c_ULTIMATE.start_main_~list~0.base (store (select .cse58 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.base_21))))) (store .cse57 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse57 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base))))) (store .cse56 c_ULTIMATE.start_main_~list~0.base (store (select .cse56 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse55))) (let ((.cse46 (select .cse44 .cse45)) (.cse47 (select (select (let ((.cse49 (let ((.cse51 (let ((.cse52 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_21 v_DerPreprocessor_79) .cse53 c_ULTIMATE.start_main_~m~0.offset) .cse54 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse52 c_ULTIMATE.start_main_~list~0.base (store (select .cse52 c_ULTIMATE.start_main_~list~0.base) .cse50 v_ULTIMATE.start_main_~n~0.offset_21))))) (store .cse51 v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select .cse51 v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset))))) (store .cse49 c_ULTIMATE.start_main_~list~0.base (store (select .cse49 c_ULTIMATE.start_main_~list~0.base) .cse50 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse55))) (let ((.cse48 (select .cse46 .cse47))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_21))) (bvslt (select (select (store .cse44 .cse45 (store .cse46 .cse47 (bvadd .cse48 (select (select .cse44 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_21 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt v_ULTIMATE.start_main_~x~0_27 (_ bv10 32))) (not (bvsle .cse48 (_ bv100 32))) (not (bvsgt v_ULTIMATE.start_main_~x~0_27 (_ bv0 32))))))))) (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset)) (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)))) is different from true [2021-11-07 01:32:40,212 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse43 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset))) (let ((.cse42 (select (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~list~0.base) .cse43)) (.cse2 (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~list~0.base) .cse43))) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse0 (select |c_#memory_$Pointer$.base| .cse2)) (.cse28 (bvadd .cse42 (_ bv8 32))) (.cse31 (select |c_#memory_$Pointer$.offset| .cse2)) (.cse1 (bvadd .cse42 (_ bv4 32)))) (and (= (select .cse0 .cse1) c_ULTIMATE.start_main_~m~0.base) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| .cse2)) (_ bv1 1))) (not (= c_ULTIMATE.start_main_~head~0.base .cse2)) (= (select (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base) .cse3) c_ULTIMATE.start_main_~m~0.offset) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse10 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17))) (let ((.cse5 (let ((.cse15 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_58) .cse12 v_DerPreprocessor_57)))) (store .cse15 c_ULTIMATE.start_main_~list~0.base (store (select .cse15 c_ULTIMATE.start_main_~list~0.base) .cse10 v_DerPreprocessor_56)))) (.cse6 (select (select (let ((.cse14 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse10 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse7 (select .cse5 .cse6)) (.cse8 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse9 c_ULTIMATE.start_main_~list~0.base (store (select .cse9 c_ULTIMATE.start_main_~list~0.base) .cse10 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse4 (select .cse7 .cse8))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_17))) (not (bvsle .cse4 (_ bv100 32))) (bvslt (select (select (store .cse5 .cse6 (store .cse7 .cse8 (bvadd .cse4 (select (select .cse5 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (not (= c_ULTIMATE.start_main_~m~0.base .cse2)) (= c_ULTIMATE.start_main_~m~0.base (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base) .cse3)) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32))) (let ((.cse25 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse22 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse23 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse24 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23))) (let ((.cse17 (let ((.cse27 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 ULTIMATE.start_main_~x~0) .cse23 v_DerPreprocessor_89) .cse24 v_DerPreprocessor_88)))) (store .cse27 c_ULTIMATE.start_main_~list~0.base (store (select .cse27 c_ULTIMATE.start_main_~list~0.base) .cse22 v_DerPreprocessor_87)))) (.cse18 (select (select (let ((.cse26 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse23 c_ULTIMATE.start_main_~m~0.base) .cse24 c_ULTIMATE.start_main_~head~0.base)))) (store .cse26 c_ULTIMATE.start_main_~list~0.base (store (select .cse26 c_ULTIMATE.start_main_~list~0.base) .cse22 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse25))) (let ((.cse19 (select .cse17 .cse18)) (.cse20 (select (select (let ((.cse21 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse23 c_ULTIMATE.start_main_~m~0.offset) .cse24 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse21 c_ULTIMATE.start_main_~list~0.base (store (select .cse21 c_ULTIMATE.start_main_~list~0.base) .cse22 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse25))) (let ((.cse16 (select .cse19 .cse20))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_23))) (not (bvsle .cse16 (_ bv100 32))) (bvslt (select (select (store .cse17 .cse18 (store .cse19 .cse20 (bvadd (select (select .cse17 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse16))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= c_ULTIMATE.start_main_~head~0.base (select .cse0 .cse28)) (exists ((v_arrayElimCell_236 (_ BitVec 1))) (let ((.cse29 (bvneg (bvneg v_arrayElimCell_236)))) (and (= (_ bv0 1) (bvadd (_ bv1 1) .cse29)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base)) .cse29))))) (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset)) (exists ((v_arrayElimCell_237 (_ BitVec 1))) (let ((.cse30 (bvneg v_arrayElimCell_237))) (and (= (_ bv0 1) (bvadd (select |c_#valid| c_ULTIMATE.start_main_~m~0.base) .cse30)) (= (_ bv0 1) (bvadd (_ bv1 1) .cse30))))) (= c_ULTIMATE.start_main_~head~0.offset (select .cse31 .cse28)) (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (select .cse31 .cse1)) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)) (forall ((v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32))) (let ((.cse39 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse38 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset))) (let ((.cse33 (let ((.cse41 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) ULTIMATE.start_main_~x~0) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72)))) (store .cse41 c_ULTIMATE.start_main_~list~0.base (store (select .cse41 c_ULTIMATE.start_main_~list~0.base) .cse38 v_DerPreprocessor_71)))) (.cse34 (select (select (let ((.cse40 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base)))) (store .cse40 c_ULTIMATE.start_main_~list~0.base (store (select .cse40 c_ULTIMATE.start_main_~list~0.base) .cse38 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse39))) (let ((.cse35 (select .cse33 .cse34)) (.cse36 (select (select (let ((.cse37 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset)))) (store .cse37 c_ULTIMATE.start_main_~list~0.base (store (select .cse37 c_ULTIMATE.start_main_~list~0.base) .cse38 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse39))) (let ((.cse32 (select .cse35 .cse36))) (or (not (bvsle .cse32 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt ULTIMATE.start_main_~x~0 (_ bv10 32))) (not (bvsgt ULTIMATE.start_main_~x~0 (_ bv0 32))) (bvslt (select (select (store .cse33 .cse34 (store .cse35 .cse36 (bvadd .cse32 (select (select .cse33 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))))))) is different from false [2021-11-07 01:32:42,229 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse43 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset))) (let ((.cse42 (select (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~list~0.base) .cse43)) (.cse2 (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~list~0.base) .cse43))) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse0 (select |c_#memory_$Pointer$.base| .cse2)) (.cse28 (bvadd .cse42 (_ bv8 32))) (.cse31 (select |c_#memory_$Pointer$.offset| .cse2)) (.cse1 (bvadd .cse42 (_ bv4 32)))) (and (= (select .cse0 .cse1) c_ULTIMATE.start_main_~m~0.base) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| .cse2)) (_ bv1 1))) (not (= c_ULTIMATE.start_main_~head~0.base .cse2)) (= (select (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_main_~head~0.base) .cse3) c_ULTIMATE.start_main_~m~0.offset) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_57 (_ BitVec 32)) (v_DerPreprocessor_58 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_DerPreprocessor_55 (_ BitVec 32)) (v_DerPreprocessor_56 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_DerPreprocessor_59 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse10 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17))) (let ((.cse5 (let ((.cse15 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_58) .cse12 v_DerPreprocessor_57)))) (store .cse15 c_ULTIMATE.start_main_~list~0.base (store (select .cse15 c_ULTIMATE.start_main_~list~0.base) .cse10 v_DerPreprocessor_56)))) (.cse6 (select (select (let ((.cse14 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_55) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse10 v_ULTIMATE.start_main_~n~0.base_17))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse7 (select .cse5 .cse6)) (.cse8 (select (select (let ((.cse9 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_17 v_DerPreprocessor_59) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse9 c_ULTIMATE.start_main_~list~0.base (store (select .cse9 c_ULTIMATE.start_main_~list~0.base) .cse10 v_ULTIMATE.start_main_~n~0.offset_17))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse4 (select .cse7 .cse8))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_17))) (not (bvsle .cse4 (_ bv100 32))) (bvslt (select (select (store .cse5 .cse6 (store .cse7 .cse8 (bvadd .cse4 (select (select .cse5 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (not (= c_ULTIMATE.start_main_~m~0.base .cse2)) (= c_ULTIMATE.start_main_~m~0.base (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_main_~head~0.base) .cse3)) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_86 (_ BitVec 32)) (v_DerPreprocessor_87 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_23 (_ BitVec 32)) (v_DerPreprocessor_88 (_ BitVec 32)) (v_DerPreprocessor_89 (_ BitVec 32)) (v_DerPreprocessor_90 (_ BitVec 32))) (let ((.cse25 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse22 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse23 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23)) (.cse24 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23))) (let ((.cse17 (let ((.cse27 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 ULTIMATE.start_main_~x~0) .cse23 v_DerPreprocessor_89) .cse24 v_DerPreprocessor_88)))) (store .cse27 c_ULTIMATE.start_main_~list~0.base (store (select .cse27 c_ULTIMATE.start_main_~list~0.base) .cse22 v_DerPreprocessor_87)))) (.cse18 (select (select (let ((.cse26 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_86) .cse23 c_ULTIMATE.start_main_~m~0.base) .cse24 c_ULTIMATE.start_main_~head~0.base)))) (store .cse26 c_ULTIMATE.start_main_~list~0.base (store (select .cse26 c_ULTIMATE.start_main_~list~0.base) .cse22 v_ULTIMATE.start_main_~n~0.base_23))) c_ULTIMATE.start_main_~head~0.base) .cse25))) (let ((.cse19 (select .cse17 .cse18)) (.cse20 (select (select (let ((.cse21 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_23 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_23) v_ULTIMATE.start_main_~n~0.offset_23 v_DerPreprocessor_90) .cse23 c_ULTIMATE.start_main_~m~0.offset) .cse24 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse21 c_ULTIMATE.start_main_~list~0.base (store (select .cse21 c_ULTIMATE.start_main_~list~0.base) .cse22 v_ULTIMATE.start_main_~n~0.offset_23))) c_ULTIMATE.start_main_~head~0.base) .cse25))) (let ((.cse16 (select .cse19 .cse20))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_23))) (not (bvsle .cse16 (_ bv100 32))) (bvslt (select (select (store .cse17 .cse18 (store .cse19 .cse20 (bvadd (select (select .cse17 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse16))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= c_ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= c_ULTIMATE.start_main_~head~0.base (select .cse0 .cse28)) (exists ((v_arrayElimCell_236 (_ BitVec 1))) (let ((.cse29 (bvneg (bvneg v_arrayElimCell_236)))) (and (= (_ bv0 1) (bvadd (_ bv1 1) .cse29)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start_main_~head~0.base)) .cse29))))) (= (_ bv100 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset)) (exists ((v_arrayElimCell_237 (_ BitVec 1))) (let ((.cse30 (bvneg v_arrayElimCell_237))) (and (= (_ bv0 1) (bvadd (select |c_#valid| c_ULTIMATE.start_main_~m~0.base) .cse30)) (= (_ bv0 1) (bvadd (_ bv1 1) .cse30))))) (= c_ULTIMATE.start_main_~head~0.offset (select .cse31 .cse28)) (= c_ULTIMATE.start_main_~head~0.offset c_ULTIMATE.start_main_~list~0.offset) (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~head~0.base) (= c_ULTIMATE.start_main_~m~0.offset (select .cse31 .cse1)) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32)) (forall ((v_DerPreprocessor_71 (_ BitVec 32)) (v_DerPreprocessor_72 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_70 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_20 (_ BitVec 32)) (v_DerPreprocessor_73 (_ BitVec 32)) (v_DerPreprocessor_74 (_ BitVec 32))) (let ((.cse39 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse38 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset))) (let ((.cse33 (let ((.cse41 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) ULTIMATE.start_main_~x~0) (_ bv4 32) v_DerPreprocessor_73) (_ bv8 32) v_DerPreprocessor_72)))) (store .cse41 c_ULTIMATE.start_main_~list~0.base (store (select .cse41 c_ULTIMATE.start_main_~list~0.base) .cse38 v_DerPreprocessor_71)))) (.cse34 (select (select (let ((.cse40 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_70) (_ bv4 32) c_ULTIMATE.start_main_~m~0.base) (_ bv8 32) c_ULTIMATE.start_main_~head~0.base)))) (store .cse40 c_ULTIMATE.start_main_~list~0.base (store (select .cse40 c_ULTIMATE.start_main_~list~0.base) .cse38 v_ULTIMATE.start_main_~n~0.base_20))) c_ULTIMATE.start_main_~head~0.base) .cse39))) (let ((.cse35 (select .cse33 .cse34)) (.cse36 (select (select (let ((.cse37 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_20 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_20) (_ bv0 32) v_DerPreprocessor_74) (_ bv4 32) c_ULTIMATE.start_main_~m~0.offset) (_ bv8 32) c_ULTIMATE.start_main_~head~0.offset)))) (store .cse37 c_ULTIMATE.start_main_~list~0.base (store (select .cse37 c_ULTIMATE.start_main_~list~0.base) .cse38 (_ bv0 32)))) c_ULTIMATE.start_main_~head~0.base) .cse39))) (let ((.cse32 (select .cse35 .cse36))) (or (not (bvsle .cse32 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_20))) (not (bvslt ULTIMATE.start_main_~x~0 (_ bv10 32))) (not (bvsgt ULTIMATE.start_main_~x~0 (_ bv0 32))) (bvslt (select (select (store .cse33 .cse34 (store .cse35 .cse36 (bvadd .cse32 (select (select .cse33 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))))))) is different from true [2021-11-07 01:33:05,306 WARN L207 SmtUtils]: Spent 6.77 s on a formula simplification. DAG size of input: 194 DAG size of output: 172 [2021-11-07 01:33:09,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:09,244 INFO L93 Difference]: Finished difference Result 67 states and 94 transitions. [2021-11-07 01:33:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:33:09,245 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 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 14 [2021-11-07 01:33:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:09,246 INFO L225 Difference]: With dead ends: 67 [2021-11-07 01:33:09,246 INFO L226 Difference]: Without dead ends: 60 [2021-11-07 01:33:09,247 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 63.7s TimeCoverageRelationStatistics Valid=249, Invalid=1021, Unknown=22, NotChecked=600, Total=1892 [2021-11-07 01:33:09,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-07 01:33:09,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 36. [2021-11-07 01:33:09,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.457142857142857) internal successors, (51), 35 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:09,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2021-11-07 01:33:09,260 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 14 [2021-11-07 01:33:09,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:09,260 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2021-11-07 01:33:09,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 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) [2021-11-07 01:33:09,261 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2021-11-07 01:33:09,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:33:09,262 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:09,262 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:09,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:09,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-11-07 01:33:09,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:09,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:33:09,869 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:09,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:09,869 INFO L85 PathProgramCache]: Analyzing trace with hash -857850716, now seen corresponding path program 1 times [2021-11-07 01:33:09,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:09,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727535581] [2021-11-07 01:33:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:09,870 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:09,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:09,871 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:09,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:33:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:10,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 01:33:10,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:10,731 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-11-07 01:33:10,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 63 [2021-11-07 01:33:10,765 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-07 01:33:10,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 63 treesize of output 63 [2021-11-07 01:33:10,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 67 treesize of output 65 [2021-11-07 01:33:10,820 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-07 01:33:10,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 [2021-11-07 01:33:10,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:10,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:33:11,236 INFO L354 Elim1Store]: treesize reduction 116, result has 14.1 percent of original size [2021-11-07 01:33:11,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 199 treesize of output 144 [2021-11-07 01:33:11,297 INFO L354 Elim1Store]: treesize reduction 152, result has 6.7 percent of original size [2021-11-07 01:33:11,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 case distinctions, treesize of input 154 treesize of output 120 [2021-11-07 01:33:11,346 INFO L354 Elim1Store]: treesize reduction 116, result has 14.1 percent of original size [2021-11-07 01:33:11,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 90 [2021-11-07 01:33:13,743 INFO L354 Elim1Store]: treesize reduction 54, result has 5.3 percent of original size [2021-11-07 01:33:13,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 65 [2021-11-07 01:33:13,788 INFO L354 Elim1Store]: treesize reduction 30, result has 9.1 percent of original size [2021-11-07 01:33:13,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 40 [2021-11-07 01:33:13,795 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-07 01:33:13,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 14 [2021-11-07 01:33:13,849 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:13,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:18,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:18,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-07 01:33:18,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:18,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-07 01:33:30,938 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:30,938 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:30,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727535581] [2021-11-07 01:33:30,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727535581] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:33:30,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1401694116] [2021-11-07 01:33:30,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:30,939 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:33:30,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:33:30,950 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:33:30,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-07 01:33:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:31,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 01:33:31,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:31,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:31,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 84 [2021-11-07 01:33:31,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:31,976 INFO L354 Elim1Store]: treesize reduction 35, result has 27.1 percent of original size [2021-11-07 01:33:31,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 63 [2021-11-07 01:33:31,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:31,985 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-07 01:33:31,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 50 [2021-11-07 01:33:31,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 45 treesize of output 43 [2021-11-07 01:33:32,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:32,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:33:32,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:32,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:32,572 INFO L354 Elim1Store]: treesize reduction 153, result has 10.5 percent of original size [2021-11-07 01:33:32,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 181 treesize of output 135 [2021-11-07 01:33:32,645 INFO L354 Elim1Store]: treesize reduction 223, result has 5.9 percent of original size [2021-11-07 01:33:32,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 124 treesize of output 99 [2021-11-07 01:33:32,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:32,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:32,707 INFO L354 Elim1Store]: treesize reduction 133, result has 13.1 percent of original size [2021-11-07 01:33:32,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 79 [2021-11-07 01:33:35,204 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:35,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 61 treesize of output 49 [2021-11-07 01:33:35,242 INFO L354 Elim1Store]: treesize reduction 29, result has 21.6 percent of original size [2021-11-07 01:33:35,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 33 [2021-11-07 01:33:35,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:35,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:35,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:35,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-07 01:33:35,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:35,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-07 01:33:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:43,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1401694116] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:33:43,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650824248] [2021-11-07 01:33:43,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:43,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:33:43,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:33:43,680 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:33:43,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-07 01:33:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:44,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 01:33:44,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:44,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:44,535 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-07 01:33:44,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-07 01:33:44,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:44,604 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-07 01:33:44,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-07 01:33:44,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:44,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:33:44,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:44,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:33:44,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-07 01:33:45,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:45,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:45,557 INFO L354 Elim1Store]: treesize reduction 98, result has 14.8 percent of original size [2021-11-07 01:33:45,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 137 [2021-11-07 01:33:45,564 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:45,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:45,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 88 [2021-11-07 01:33:45,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 55 [2021-11-07 01:33:54,698 INFO L354 Elim1Store]: treesize reduction 34, result has 8.1 percent of original size [2021-11-07 01:33:54,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 56 [2021-11-07 01:33:54,718 INFO L354 Elim1Store]: treesize reduction 58, result has 4.9 percent of original size [2021-11-07 01:33:54,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 24 [2021-11-07 01:33:54,743 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:54,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:01,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-07 01:34:01,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-07 01:34:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:10,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650824248] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:34:10,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:34:10,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6, 7, 9, 9] total 26 [2021-11-07 01:34:10,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777634469] [2021-11-07 01:34:10,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-07 01:34:10,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:10,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-07 01:34:10,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=517, Unknown=18, NotChecked=0, Total=650 [2021-11-07 01:34:10,834 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:41,098 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2021-11-07 01:34:41,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 01:34:41,099 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 01:34:41,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:41,100 INFO L225 Difference]: With dead ends: 77 [2021-11-07 01:34:41,100 INFO L226 Difference]: Without dead ends: 67 [2021-11-07 01:34:41,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 63.1s TimeCoverageRelationStatistics Valid=268, Invalid=1046, Unknown=18, NotChecked=0, Total=1332 [2021-11-07 01:34:41,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-07 01:34:41,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2021-11-07 01:34:41,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 57 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:41,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2021-11-07 01:34:41,118 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 15 [2021-11-07 01:34:41,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:41,118 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2021-11-07 01:34:41,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:41,119 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2021-11-07 01:34:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:34:41,120 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:41,120 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:41,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:41,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:41,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-11-07 01:34:41,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:34:41,724 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:41,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:41,725 INFO L85 PathProgramCache]: Analyzing trace with hash -856003674, now seen corresponding path program 1 times [2021-11-07 01:34:41,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:41,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958164570] [2021-11-07 01:34:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:41,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:41,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:41,726 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:41,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-07 01:34:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:42,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-07 01:34:42,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:42,747 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-07 01:34:42,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:34:42,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:42,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:34:42,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-07 01:34:42,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:42,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-07 01:34:42,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:42,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-07 01:34:43,278 INFO L354 Elim1Store]: treesize reduction 116, result has 14.1 percent of original size [2021-11-07 01:34:43,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 192 treesize of output 143 [2021-11-07 01:34:43,290 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:34:43,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 92 [2021-11-07 01:34:43,320 INFO L354 Elim1Store]: treesize reduction 49, result has 5.8 percent of original size [2021-11-07 01:34:43,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 68 [2021-11-07 01:34:46,190 INFO L354 Elim1Store]: treesize reduction 54, result has 5.3 percent of original size [2021-11-07 01:34:46,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 113 [2021-11-07 01:34:46,242 INFO L354 Elim1Store]: treesize reduction 30, result has 9.1 percent of original size [2021-11-07 01:34:46,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 61 [2021-11-07 01:34:46,267 INFO L354 Elim1Store]: treesize reduction 40, result has 14.9 percent of original size [2021-11-07 01:34:46,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 47 treesize of output 30 [2021-11-07 01:34:46,421 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:34:46,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2021-11-07 01:34:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:46,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:50,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:50,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 601 [2021-11-07 01:34:50,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:50,857 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 762 [2021-11-07 01:35:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:06,502 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:06,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958164570] [2021-11-07 01:35:06,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958164570] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:35:06,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1437233481] [2021-11-07 01:35:06,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:06,503 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:35:06,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:35:06,504 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:35:06,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-07 01:35:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:07,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-07 01:35:07,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:07,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:07,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:35:07,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-07 01:35:07,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:07,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-07 01:35:07,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:07,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-07 01:35:07,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:07,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:35:08,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:08,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:08,289 INFO L354 Elim1Store]: treesize reduction 147, result has 14.0 percent of original size [2021-11-07 01:35:08,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 184 treesize of output 144 [2021-11-07 01:35:08,380 INFO L354 Elim1Store]: treesize reduction 249, result has 5.3 percent of original size [2021-11-07 01:35:08,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 139 treesize of output 114 [2021-11-07 01:35:08,399 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:08,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:08,466 INFO L354 Elim1Store]: treesize reduction 151, result has 11.7 percent of original size [2021-11-07 01:35:08,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 102 treesize of output 88 [2021-11-07 01:35:11,228 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:35:11,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 109 treesize of output 81 [2021-11-07 01:35:11,270 INFO L354 Elim1Store]: treesize reduction 52, result has 11.9 percent of original size [2021-11-07 01:35:11,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 75 treesize of output 46 [2021-11-07 01:35:11,277 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:35:11,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 21 [2021-11-07 01:35:11,696 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:35:11,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 24 [2021-11-07 01:35:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:11,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:19,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:35:19,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 770 [2021-11-07 01:35:19,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:35:19,747 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1010 [2021-11-07 01:35:32,292 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:32,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1437233481] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:35:32,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094765656] [2021-11-07 01:35:32,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:32,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:35:32,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:35:32,294 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:35:32,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-07 01:35:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:33,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-07 01:35:33,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:33,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:33,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:35:33,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:33,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:35:33,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-07 01:35:33,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:33,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-07 01:35:33,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:33,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-07 01:35:33,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:33,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:33,928 INFO L354 Elim1Store]: treesize reduction 98, result has 14.8 percent of original size [2021-11-07 01:35:33,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 137 [2021-11-07 01:35:33,935 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:33,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:33,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 88 [2021-11-07 01:35:33,983 INFO L354 Elim1Store]: treesize reduction 49, result has 5.8 percent of original size [2021-11-07 01:35:33,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 64 [2021-11-07 01:35:35,728 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:35:35,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 109 treesize of output 85 [2021-11-07 01:35:35,767 INFO L354 Elim1Store]: treesize reduction 52, result has 11.9 percent of original size [2021-11-07 01:35:35,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 79 treesize of output 50 [2021-11-07 01:35:35,776 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:35:35,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 67 treesize of output 51 [2021-11-07 01:35:36,831 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:35:36,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 27 [2021-11-07 01:35:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:36,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:44,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:35:44,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 770 [2021-11-07 01:35:44,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:35:44,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1010 [2021-11-07 01:35:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:55,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094765656] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:35:55,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:35:55,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 10, 10, 12] total 37 [2021-11-07 01:35:55,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621078017] [2021-11-07 01:35:55,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-07 01:35:55,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:55,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-07 01:35:55,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1010, Unknown=24, NotChecked=0, Total=1332 [2021-11-07 01:35:55,642 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 37 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 37 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:36:09,057 WARN L207 SmtUtils]: Spent 5.91 s on a formula simplification that was a NOOP. DAG size: 123 [2021-11-07 01:37:24,863 WARN L207 SmtUtils]: Spent 7.17 s on a formula simplification that was a NOOP. DAG size: 81 [2021-11-07 01:37:25,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:25,972 INFO L93 Difference]: Finished difference Result 86 states and 113 transitions. [2021-11-07 01:37:25,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-07 01:37:25,974 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 37 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 01:37:25,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:25,975 INFO L225 Difference]: With dead ends: 86 [2021-11-07 01:37:25,975 INFO L226 Difference]: Without dead ends: 83 [2021-11-07 01:37:25,977 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 99.1s TimeCoverageRelationStatistics Valid=768, Invalid=2287, Unknown=25, NotChecked=0, Total=3080 [2021-11-07 01:37:25,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-07 01:37:25,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 62. [2021-11-07 01:37:25,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.360655737704918) internal successors, (83), 61 states have internal predecessors, (83), 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) [2021-11-07 01:37:25,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2021-11-07 01:37:25,997 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 15 [2021-11-07 01:37:25,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:25,997 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2021-11-07 01:37:25,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 37 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:37:25,998 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2021-11-07 01:37:25,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:37:25,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:25,999 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:37:26,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:26,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2021-11-07 01:37:26,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-11-07 01:37:26,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:26,624 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:26,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:26,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1250877726, now seen corresponding path program 2 times [2021-11-07 01:37:26,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:26,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231538805] [2021-11-07 01:37:26,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:37:26,626 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:26,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:26,627 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:26,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-07 01:37:27,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:37:27,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:37:27,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 01:37:27,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:27,758 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-11-07 01:37:27,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 81 [2021-11-07 01:37:27,806 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-07 01:37:27,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 81 treesize of output 81 [2021-11-07 01:37:28,675 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-07 01:37:28,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 84 treesize of output 71 [2021-11-07 01:37:28,704 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-07 01:37:28,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 65 treesize of output 65 [2021-11-07 01:37:28,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 61 [2021-11-07 01:37:28,711 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:37:28,927 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:37:28,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 74 treesize of output 50 [2021-11-07 01:37:28,935 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:37:28,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 29 [2021-11-07 01:37:28,941 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:37:28,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 14 [2021-11-07 01:37:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:37:28,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:29,154 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:37:29,155 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:29,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231538805] [2021-11-07 01:37:29,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [231538805] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:29,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:29,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:37:29,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202260998] [2021-11-07 01:37:29,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:37:29,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:29,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:37:29,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:37:29,157 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:37:32,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:32,579 INFO L93 Difference]: Finished difference Result 78 states and 104 transitions. [2021-11-07 01:37:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:37:32,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 01:37:32,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:32,583 INFO L225 Difference]: With dead ends: 78 [2021-11-07 01:37:32,583 INFO L226 Difference]: Without dead ends: 60 [2021-11-07 01:37:32,583 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:37:32,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-07 01:37:32,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-11-07 01:37:32,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.3559322033898304) internal successors, (80), 59 states have internal predecessors, (80), 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) [2021-11-07 01:37:32,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2021-11-07 01:37:32,602 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 15 [2021-11-07 01:37:32,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:32,603 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2021-11-07 01:37:32,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:37:32,603 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2021-11-07 01:37:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:37:32,604 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:32,605 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:37:32,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:32,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:32,813 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:32,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:32,813 INFO L85 PathProgramCache]: Analyzing trace with hash -402400127, now seen corresponding path program 2 times [2021-11-07 01:37:32,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:32,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017698480] [2021-11-07 01:37:32,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:37:32,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:32,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:32,815 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:32,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-07 01:37:33,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:37:33,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:37:33,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-07 01:37:33,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:33,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:33,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:37:33,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:33,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:37:33,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:34,034 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-07 01:37:34,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-11-07 01:37:34,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:34,109 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-07 01:37:34,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-11-07 01:37:34,224 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:37:34,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 20 treesize of output 22 [2021-11-07 01:37:34,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:34,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-07 01:37:34,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:34,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:34,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:37:36,420 INFO L354 Elim1Store]: treesize reduction 322, result has 9.8 percent of original size [2021-11-07 01:37:36,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 248 treesize of output 230 [2021-11-07 01:37:36,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:36,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-11-07 01:37:36,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:36,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:36,466 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:37:36,921 INFO L354 Elim1Store]: treesize reduction 550, result has 8.8 percent of original size [2021-11-07 01:37:36,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 277 treesize of output 241 [2021-11-07 01:37:37,164 INFO L354 Elim1Store]: treesize reduction 350, result has 8.9 percent of original size [2021-11-07 01:37:37,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 285 treesize of output 252 [2021-11-07 01:37:37,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:37,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-07 01:37:37,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:37,307 INFO L354 Elim1Store]: treesize reduction 180, result has 16.7 percent of original size [2021-11-07 01:37:37,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 234 treesize of output 186 [2021-11-07 01:37:37,308 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:37:37,405 INFO L354 Elim1Store]: treesize reduction 54, result has 40.7 percent of original size [2021-11-07 01:37:37,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 159 treesize of output 182 [2021-11-07 01:37:38,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:38,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-11-07 01:37:38,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:44,635 WARN L207 SmtUtils]: Spent 6.57 s on a formula simplification. DAG size of input: 149 DAG size of output: 38 [2021-11-07 01:37:44,636 INFO L354 Elim1Store]: treesize reduction 1040, result has 5.9 percent of original size [2021-11-07 01:37:44,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 361 treesize of output 316 [2021-11-07 01:37:44,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:44,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-11-07 01:37:44,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:45,598 INFO L354 Elim1Store]: treesize reduction 956, result has 6.5 percent of original size [2021-11-07 01:37:45,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 357 treesize of output 327 [2021-11-07 01:37:45,822 INFO L354 Elim1Store]: treesize reduction 350, result has 8.9 percent of original size [2021-11-07 01:37:45,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 340 treesize of output 307 [2021-11-07 01:37:45,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:45,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-11-07 01:37:45,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:45,978 INFO L354 Elim1Store]: treesize reduction 180, result has 16.7 percent of original size [2021-11-07 01:37:45,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 289 treesize of output 241 [2021-11-07 01:37:45,980 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:37:46,063 INFO L354 Elim1Store]: treesize reduction 28, result has 52.5 percent of original size [2021-11-07 01:37:46,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 214 treesize of output 230 [2021-11-07 01:37:48,225 INFO L354 Elim1Store]: treesize reduction 238, result has 0.4 percent of original size [2021-11-07 01:37:48,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 450 treesize of output 224 [2021-11-07 01:37:48,258 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-07 01:37:48,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 176 treesize of output 102 [2021-11-07 01:37:48,290 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-07 01:37:48,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 47 treesize of output 30 [2021-11-07 01:37:48,476 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-07 01:37:48,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 24 [2021-11-07 01:37:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:37:48,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:49,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:49,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-07 01:37:49,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:49,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 495 [2021-11-07 01:37:49,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:49,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 575 [2021-11-07 01:37:49,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:49,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-11-07 01:37:49,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:49,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 634 [2021-11-07 01:37:52,299 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_33 (_ BitVec 32)) (v_DerPreprocessor_114 (_ BitVec 32)) (v_DerPreprocessor_115 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_33 (_ BitVec 32)) (v_DerPreprocessor_116 (_ BitVec 32)) (v_DerPreprocessor_117 (_ BitVec 32)) (v_DerPreprocessor_118 (_ BitVec 32))) (let ((.cse9 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse7 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_33)) (.cse8 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_33))) (let ((.cse1 (let ((.cse11 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 ULTIMATE.start_main_~x~0) .cse7 v_DerPreprocessor_117) .cse8 v_DerPreprocessor_116)))) (store .cse11 c_ULTIMATE.start_main_~list~0.base (store (select .cse11 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_115)))) (.cse2 (select (select (let ((.cse10 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 v_DerPreprocessor_114) .cse7 c_ULTIMATE.start_main_~m~0.base) .cse8 c_ULTIMATE.start_main_~head~0.base)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_33))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 v_DerPreprocessor_118) .cse7 c_ULTIMATE.start_main_~m~0.offset) .cse8 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_33))) c_ULTIMATE.start_main_~head~0.base) .cse9))) (let ((.cse0 (select .cse3 .cse4))) (or (not (bvsle .cse0 (_ bv100 32))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_33))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset) .cse0))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)))))))) is different from false [2021-11-07 01:37:53,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:53,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1938 [2021-11-07 01:37:53,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:53,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2118 [2021-11-07 01:37:53,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:53,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2498 [2021-11-07 01:37:53,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:53,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2795 [2021-11-07 01:37:53,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:53,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2851 [2021-11-07 01:38:22,773 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_121 (_ BitVec 32)) (v_DerPreprocessor_122 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_123 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_33 (_ BitVec 32)) (v_DerPreprocessor_114 (_ BitVec 32)) (v_DerPreprocessor_115 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_33 (_ BitVec 32)) (v_DerPreprocessor_116 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_34 (_ BitVec 32)) (v_DerPreprocessor_117 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_34 (_ BitVec 32)) (v_DerPreprocessor_120 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_42 (_ BitVec 32)) (v_DerPreprocessor_118 (_ BitVec 32)) (v_DerPreprocessor_119 (_ BitVec 32))) (let ((.cse13 (bvadd c_ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse8 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_33)) (.cse9 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_33)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset)) (.cse11 (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_34)) (.cse12 (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_34))) (let ((.cse1 (let ((.cse17 (let ((.cse18 (let ((.cse19 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_34 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_34) v_ULTIMATE.start_main_~n~0.offset_34 ULTIMATE.start_main_~x~0) .cse11 v_DerPreprocessor_122) .cse12 v_DerPreprocessor_121)))) (store .cse19 c_ULTIMATE.start_main_~list~0.base (store (select .cse19 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_120))))) (store .cse18 v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select .cse18 v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 v_ULTIMATE.start_main_~x~0_42) .cse8 v_DerPreprocessor_117) .cse9 v_DerPreprocessor_116))))) (store .cse17 c_ULTIMATE.start_main_~list~0.base (store (select .cse17 c_ULTIMATE.start_main_~list~0.base) .cse6 v_DerPreprocessor_115)))) (.cse2 (select (select (let ((.cse14 (let ((.cse15 (let ((.cse16 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_34 (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_main_~n~0.base_34) v_ULTIMATE.start_main_~n~0.offset_34 v_DerPreprocessor_119) .cse11 c_ULTIMATE.start_main_~m~0.base) .cse12 c_ULTIMATE.start_main_~head~0.base)))) (store .cse16 c_ULTIMATE.start_main_~list~0.base (store (select .cse16 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_34))))) (store .cse15 v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select .cse15 v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 v_DerPreprocessor_114) .cse8 c_ULTIMATE.start_main_~m~0.base) .cse9 c_ULTIMATE.start_main_~head~0.base))))) (store .cse14 c_ULTIMATE.start_main_~list~0.base (store (select .cse14 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.base_33))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse3 (select .cse1 .cse2)) (.cse4 (select (select (let ((.cse5 (let ((.cse7 (let ((.cse10 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_34 (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_main_~n~0.base_34) v_ULTIMATE.start_main_~n~0.offset_34 v_DerPreprocessor_123) .cse11 c_ULTIMATE.start_main_~m~0.offset) .cse12 c_ULTIMATE.start_main_~head~0.offset)))) (store .cse10 c_ULTIMATE.start_main_~list~0.base (store (select .cse10 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_34))))) (store .cse7 v_ULTIMATE.start_main_~n~0.base_33 (store (store (store (select .cse7 v_ULTIMATE.start_main_~n~0.base_33) v_ULTIMATE.start_main_~n~0.offset_33 v_DerPreprocessor_118) .cse8 c_ULTIMATE.start_main_~m~0.offset) .cse9 c_ULTIMATE.start_main_~head~0.offset))))) (store .cse5 c_ULTIMATE.start_main_~list~0.base (store (select .cse5 c_ULTIMATE.start_main_~list~0.base) .cse6 v_ULTIMATE.start_main_~n~0.offset_33))) c_ULTIMATE.start_main_~head~0.base) .cse13))) (let ((.cse0 (select .cse3 .cse4))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_34))) (not (bvsle .cse0 (_ bv100 32))) (bvslt (select (select (store .cse1 .cse2 (store .cse3 .cse4 (bvadd .cse0 (select (select .cse1 c_ULTIMATE.start_main_~head~0.base) c_ULTIMATE.start_main_~head~0.offset)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv110 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_34 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_33))))))))) is different from false [2021-11-07 01:39:43,192 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 7 not checked. [2021-11-07 01:39:43,192 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:39:43,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017698480] [2021-11-07 01:39:43,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017698480] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:39:43,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1195457917] [2021-11-07 01:39:43,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:39:43,193 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:39:43,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:39:43,194 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:39:43,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f3c890d-ad41-4ca0-9134-103c2b0c6dd4/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-11-07 01:39:44,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:39:44,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:39:44,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-07 01:39:44,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:44,544 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:39:44,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-07 01:39:44,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:44,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:39:44,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:44,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 01:39:44,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:44,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-11-07 01:39:44,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:44,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-07 01:39:45,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:45,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-07 01:39:45,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:45,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:45,175 INFO L173 IndexEqualityManager]: detected equality via solver