./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-properties/splice-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-properties/splice-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:08:59,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:08:59,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:08:59,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:08:59,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:08:59,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:08:59,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:08:59,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:08:59,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:08:59,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:08:59,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:08:59,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:08:59,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:08:59,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:08:59,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:08:59,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:08:59,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:08:59,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:08:59,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:08:59,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:08:59,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:08:59,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:08:59,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:08:59,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:08:59,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:08:59,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:08:59,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:08:59,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:08:59,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:08:59,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:08:59,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:08:59,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:08:59,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:08:59,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:08:59,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:08:59,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:08:59,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:08:59,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:08:59,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:08:59,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:08:59,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:08:59,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 05:08:59,917 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:08:59,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:08:59,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:08:59,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:08:59,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:08:59,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:08:59,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:08:59,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:08:59,921 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:08:59,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:08:59,921 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:08:59,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:08:59,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:08:59,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:08:59,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:08:59,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:08:59,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:08:59,923 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:08:59,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:08:59,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:08:59,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:08:59,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:08:59,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:08:59,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:08:59,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:08:59,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:08:59,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:08:59,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:08:59,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:08:59,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:08:59,926 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:08:59,926 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:08:59,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:08:59,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:08:59,927 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc [2021-11-19 05:09:00,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:09:00,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:09:00,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:09:00,226 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:09:00,227 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:09:00,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/list-properties/splice-2.i [2021-11-19 05:09:00,329 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/data/fa8d1f7fe/10e920b9c4594583bb231533d0389743/FLAGe658cd6ff [2021-11-19 05:09:00,855 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:09:00,855 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/sv-benchmarks/c/list-properties/splice-2.i [2021-11-19 05:09:00,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/data/fa8d1f7fe/10e920b9c4594583bb231533d0389743/FLAGe658cd6ff [2021-11-19 05:09:01,133 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/data/fa8d1f7fe/10e920b9c4594583bb231533d0389743 [2021-11-19 05:09:01,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:09:01,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:09:01,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:09:01,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:09:01,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:09:01,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f17a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01, skipping insertion in model container [2021-11-19 05:09:01,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:09:01,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:09:01,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/sv-benchmarks/c/list-properties/splice-2.i[23721,23734] [2021-11-19 05:09:01,560 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:09:01,568 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:09:01,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/sv-benchmarks/c/list-properties/splice-2.i[23721,23734] [2021-11-19 05:09:01,608 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:09:01,637 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:09:01,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01 WrapperNode [2021-11-19 05:09:01,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:09:01,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:09:01,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:09:01,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:09:01,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,686 INFO L137 Inliner]: procedures = 124, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 104 [2021-11-19 05:09:01,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:09:01,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:09:01,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:09:01,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:09:01,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:09:01,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:09:01,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:09:01,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:09:01,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (1/1) ... [2021-11-19 05:09:01,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:09:01,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:09:01,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:09:01,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:09:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-19 05:09:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-19 05:09:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 05:09:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 05:09:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 05:09:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:09:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 05:09:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 05:09:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:09:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:09:01,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:09:01,977 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:09:01,978 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:09:02,035 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-11-19 05:09:02,244 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:09:02,252 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:09:02,252 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-19 05:09:02,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:02 BoogieIcfgContainer [2021-11-19 05:09:02,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:09:02,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:09:02,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:09:02,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:09:02,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:09:01" (1/3) ... [2021-11-19 05:09:02,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749130d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:02, skipping insertion in model container [2021-11-19 05:09:02,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:01" (2/3) ... [2021-11-19 05:09:02,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749130d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:02, skipping insertion in model container [2021-11-19 05:09:02,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:02" (3/3) ... [2021-11-19 05:09:02,271 INFO L111 eAbstractionObserver]: Analyzing ICFG splice-2.i [2021-11-19 05:09:02,277 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:09:02,277 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:09:02,332 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:09:02,339 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=PETRI_NET, 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 [2021-11-19 05:09:02,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:09:02,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 29 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:09:02,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 05:09:02,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:02,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:02,370 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:02,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:02,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1192551972, now seen corresponding path program 1 times [2021-11-19 05:09:02,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:02,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357045904] [2021-11-19 05:09:02,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:02,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:02,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:02,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:02,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357045904] [2021-11-19 05:09:02,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357045904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:09:02,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:09:02,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 05:09:02,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659776948] [2021-11-19 05:09:02,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:09:02,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 05:09:02,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:09:02,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 05:09:02,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:09:02,585 INFO L87 Difference]: Start difference. First operand has 31 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 29 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 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 6.0) internal successors, (12), 2 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) [2021-11-19 05:09:02,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:09:02,603 INFO L93 Difference]: Finished difference Result 48 states and 71 transitions. [2021-11-19 05:09:02,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:09:02,605 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) Word has length 12 [2021-11-19 05:09:02,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:09:02,612 INFO L225 Difference]: With dead ends: 48 [2021-11-19 05:09:02,613 INFO L226 Difference]: Without dead ends: 23 [2021-11-19 05:09:02,615 INFO L932 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 [2021-11-19 05:09:02,619 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:09:02,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:09:02,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-19 05:09:02,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-19 05:09:02,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 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) [2021-11-19 05:09:02,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2021-11-19 05:09:02,654 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 12 [2021-11-19 05:09:02,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:09:02,655 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2021-11-19 05:09:02,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2021-11-19 05:09:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2021-11-19 05:09:02,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 05:09:02,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:02,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:02,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:09:02,657 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:02,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:02,659 INFO L85 PathProgramCache]: Analyzing trace with hash 675462707, now seen corresponding path program 1 times [2021-11-19 05:09:02,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:02,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273664691] [2021-11-19 05:09:02,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:02,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:02,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:02,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273664691] [2021-11-19 05:09:02,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273664691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:09:02,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:09:02,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 05:09:02,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327507146] [2021-11-19 05:09:02,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:09:02,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 05:09:02,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:09:02,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 05:09:02,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 05:09:02,815 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:09:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:09:02,876 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2021-11-19 05:09:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:09:02,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-19 05:09:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:09:02,878 INFO L225 Difference]: With dead ends: 40 [2021-11-19 05:09:02,878 INFO L226 Difference]: Without dead ends: 33 [2021-11-19 05:09:02,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:09:02,881 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 10 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:09:02,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 62 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:09:02,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-19 05:09:02,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2021-11-19 05:09:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 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) [2021-11-19 05:09:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-11-19 05:09:02,889 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 14 [2021-11-19 05:09:02,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:09:02,890 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-11-19 05:09:02,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:09:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2021-11-19 05:09:02,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-19 05:09:02,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:02,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:02,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 05:09:02,893 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:02,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash 577924040, now seen corresponding path program 1 times [2021-11-19 05:09:02,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:02,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921717953] [2021-11-19 05:09:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:02,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:02,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:02,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:02,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921717953] [2021-11-19 05:09:02,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921717953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:09:02,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:09:02,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 05:09:02,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903401979] [2021-11-19 05:09:02,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:09:02,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 05:09:02,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:09:02,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 05:09:02,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 05:09:02,971 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:09:03,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:09:03,024 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2021-11-19 05:09:03,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:09:03,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-19 05:09:03,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:09:03,027 INFO L225 Difference]: With dead ends: 47 [2021-11-19 05:09:03,027 INFO L226 Difference]: Without dead ends: 39 [2021-11-19 05:09:03,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:09:03,030 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:09:03,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 63 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:09:03,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-19 05:09:03,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2021-11-19 05:09:03,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 36 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) [2021-11-19 05:09:03,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2021-11-19 05:09:03,040 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 16 [2021-11-19 05:09:03,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:09:03,040 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2021-11-19 05:09:03,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:09:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2021-11-19 05:09:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 05:09:03,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:03,042 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:03,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 05:09:03,043 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:03,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:03,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1645466066, now seen corresponding path program 1 times [2021-11-19 05:09:03,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:03,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423233923] [2021-11-19 05:09:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:03,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:03,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:03,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:03,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423233923] [2021-11-19 05:09:03,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423233923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:09:03,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:09:03,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 05:09:03,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679135977] [2021-11-19 05:09:03,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:09:03,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:09:03,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:09:03,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:09:03,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:09:03,175 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2021-11-19 05:09:03,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:09:03,320 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2021-11-19 05:09:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:09:03,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 17 [2021-11-19 05:09:03,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:09:03,321 INFO L225 Difference]: With dead ends: 70 [2021-11-19 05:09:03,322 INFO L226 Difference]: Without dead ends: 43 [2021-11-19 05:09:03,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:09:03,324 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 10 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:09:03,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 78 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 05:09:03,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-19 05:09:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2021-11-19 05:09:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 38 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) [2021-11-19 05:09:03,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2021-11-19 05:09:03,332 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 17 [2021-11-19 05:09:03,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:09:03,332 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-11-19 05:09:03,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2021-11-19 05:09:03,333 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2021-11-19 05:09:03,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 05:09:03,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:03,334 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:03,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 05:09:03,335 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:03,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:03,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1334445095, now seen corresponding path program 1 times [2021-11-19 05:09:03,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:03,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284306143] [2021-11-19 05:09:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:03,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:03,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:03,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284306143] [2021-11-19 05:09:03,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284306143] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:09:03,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555127586] [2021-11-19 05:09:03,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:03,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:09:03,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:09:03,776 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:09:03,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 05:09:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:03,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-19 05:09:03,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:09:03,959 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 05:09:04,097 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 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 05:09:04,166 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 05:09:04,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-19 05:09:04,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 05:09:04,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-19 05:09:04,321 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-19 05:09:04,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-19 05:09:04,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 05:09:04,585 INFO L354 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2021-11-19 05:09:04,586 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 38 treesize of output 25 [2021-11-19 05:09:04,756 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-19 05:09:04,757 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 [2021-11-19 05:09:04,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:04,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:09:05,362 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~p~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset| 3)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) is different from false [2021-11-19 05:09:06,187 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~p~0#1.offset_29| Int) (v_DerPreprocessor_2 Int)) (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4) v_DerPreprocessor_2)))) (store .cse0 |c_ULTIMATE.start_main_~t~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~t~0#1.base|) |v_ULTIMATE.start_main_~p~0#1.offset_29| 3))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) is different from false [2021-11-19 05:09:06,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 212 [2021-11-19 05:09:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-19 05:09:07,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555127586] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:09:07,447 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:09:07,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 27 [2021-11-19 05:09:07,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592783250] [2021-11-19 05:09:07,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:09:07,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-19 05:09:07,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:09:07,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-19 05:09:07,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=513, Unknown=3, NotChecked=94, Total=702 [2021-11-19 05:09:07,449 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 27 states, 27 states have (on average 2.111111111111111) internal successors, (57), 27 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) [2021-11-19 05:09:17,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:09:17,913 INFO L93 Difference]: Finished difference Result 108 states and 141 transitions. [2021-11-19 05:09:17,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-19 05:09:17,914 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.111111111111111) internal successors, (57), 27 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 23 [2021-11-19 05:09:17,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:09:17,915 INFO L225 Difference]: With dead ends: 108 [2021-11-19 05:09:17,915 INFO L226 Difference]: Without dead ends: 75 [2021-11-19 05:09:17,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=188, Invalid=932, Unknown=10, NotChecked=130, Total=1260 [2021-11-19 05:09:17,917 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 124 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:09:17,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 184 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 145 Invalid, 0 Unknown, 124 Unchecked, 0.1s Time] [2021-11-19 05:09:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-19 05:09:17,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 61. [2021-11-19 05:09:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.3) internal successors, (78), 60 states have internal predecessors, (78), 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) [2021-11-19 05:09:17,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2021-11-19 05:09:17,927 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 23 [2021-11-19 05:09:17,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:09:17,928 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2021-11-19 05:09:17,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.111111111111111) internal successors, (57), 27 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) [2021-11-19 05:09:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2021-11-19 05:09:17,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 05:09:17,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:17,929 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:17,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-19 05:09:18,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:09:18,130 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:18,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:18,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1115102530, now seen corresponding path program 1 times [2021-11-19 05:09:18,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:18,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287743374] [2021-11-19 05:09:18,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:18,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:18,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:18,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:18,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287743374] [2021-11-19 05:09:18,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287743374] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:09:18,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3932304] [2021-11-19 05:09:18,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:18,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:09:18,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:09:18,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:09:18,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 05:09:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:18,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 05:09:18,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:09:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 05:09:18,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:09:18,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3932304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:09:18,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:09:18,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-19 05:09:18,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915293221] [2021-11-19 05:09:18,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:09:18,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:09:18,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:09:18,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:09:18,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:09:18,320 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:09:18,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:09:18,342 INFO L93 Difference]: Finished difference Result 115 states and 149 transitions. [2021-11-19 05:09:18,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:09:18,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-19 05:09:18,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:09:18,344 INFO L225 Difference]: With dead ends: 115 [2021-11-19 05:09:18,344 INFO L226 Difference]: Without dead ends: 82 [2021-11-19 05:09:18,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:09:18,345 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 20 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:09:18,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 60 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:09:18,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-19 05:09:18,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 70. [2021-11-19 05:09:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 69 states have internal predecessors, (86), 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) [2021-11-19 05:09:18,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2021-11-19 05:09:18,355 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 25 [2021-11-19 05:09:18,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:09:18,355 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2021-11-19 05:09:18,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:09:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2021-11-19 05:09:18,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 05:09:18,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:18,357 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:18,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-19 05:09:18,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:09:18,557 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:18,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:18,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1793450878, now seen corresponding path program 1 times [2021-11-19 05:09:18,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:18,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677386764] [2021-11-19 05:09:18,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:18,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:18,774 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:18,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:18,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677386764] [2021-11-19 05:09:18,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677386764] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:09:18,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275637958] [2021-11-19 05:09:18,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:18,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:09:18,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:09:18,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:09:18,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 05:09:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:18,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 05:09:18,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:09:18,917 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 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 05:09:18,923 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 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 05:09:18,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-19 05:09:19,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-19 05:09:19,009 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 05:09:19,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:09:19,083 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 05:09:19,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275637958] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:09:19,086 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:09:19,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 12 [2021-11-19 05:09:19,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218812143] [2021-11-19 05:09:19,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:09:19,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 05:09:19,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:09:19,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 05:09:19,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 05:09:19,090 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 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) [2021-11-19 05:09:19,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:09:19,275 INFO L93 Difference]: Finished difference Result 83 states and 101 transitions. [2021-11-19 05:09:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 05:09:19,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 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 25 [2021-11-19 05:09:19,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:09:19,277 INFO L225 Difference]: With dead ends: 83 [2021-11-19 05:09:19,277 INFO L226 Difference]: Without dead ends: 75 [2021-11-19 05:09:19,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-11-19 05:09:19,278 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 46 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:09:19,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 96 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 05:09:19,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-19 05:09:19,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2021-11-19 05:09:19,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 71 states have internal predecessors, (88), 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) [2021-11-19 05:09:19,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2021-11-19 05:09:19,287 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 25 [2021-11-19 05:09:19,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:09:19,287 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 88 transitions. [2021-11-19 05:09:19,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 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) [2021-11-19 05:09:19,288 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 88 transitions. [2021-11-19 05:09:19,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 05:09:19,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:19,289 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:19,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 05:09:19,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:09:19,508 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:19,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:19,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1425682976, now seen corresponding path program 1 times [2021-11-19 05:09:19,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:19,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028024414] [2021-11-19 05:09:19,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:19,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:19,792 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:19,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:19,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028024414] [2021-11-19 05:09:19,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028024414] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:09:19,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065403321] [2021-11-19 05:09:19,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:19,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:09:19,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:09:19,794 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:09:19,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 05:09:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:19,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-19 05:09:19,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:09:19,871 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 05:09:19,987 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 05:09:19,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-19 05:09:20,043 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 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-19 05:09:20,055 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 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 05:09:20,150 INFO L354 Elim1Store]: treesize reduction 53, result has 14.5 percent of original size [2021-11-19 05:09:20,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 130 treesize of output 84 [2021-11-19 05:09:20,156 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 0 case distinctions, treesize of input 85 treesize of output 75 [2021-11-19 05:09:20,167 INFO L354 Elim1Store]: treesize reduction 53, result has 14.5 percent of original size [2021-11-19 05:09:20,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 59 [2021-11-19 05:09:20,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 05:09:20,260 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 05:09:20,261 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 42 treesize of output 31 [2021-11-19 05:09:20,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 05:09:20,267 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 05:09:20,268 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 25 treesize of output 18 [2021-11-19 05:09:20,329 INFO L354 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2021-11-19 05:09:20,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2021-11-19 05:09:20,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-19 05:09:20,406 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:20,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:09:20,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 356 [2021-11-19 05:09:21,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 188 [2021-11-19 05:09:21,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 05:09:21,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 05:09:21,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 05:09:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:21,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065403321] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:09:21,347 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:09:21,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 33 [2021-11-19 05:09:21,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296111998] [2021-11-19 05:09:21,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:09:21,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-19 05:09:21,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:09:21,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-19 05:09:21,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=968, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 05:09:21,349 INFO L87 Difference]: Start difference. First operand 72 states and 88 transitions. Second operand has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 states have internal predecessors, (68), 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) [2021-11-19 05:09:22,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:09:22,031 INFO L93 Difference]: Finished difference Result 101 states and 126 transitions. [2021-11-19 05:09:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 05:09:22,031 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 states have internal predecessors, (68), 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 26 [2021-11-19 05:09:22,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:09:22,032 INFO L225 Difference]: With dead ends: 101 [2021-11-19 05:09:22,032 INFO L226 Difference]: Without dead ends: 74 [2021-11-19 05:09:22,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=173, Invalid=1633, Unknown=0, NotChecked=0, Total=1806 [2021-11-19 05:09:22,034 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 40 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 139 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 05:09:22,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 295 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 390 Invalid, 0 Unknown, 139 Unchecked, 0.3s Time] [2021-11-19 05:09:22,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-19 05:09:22,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-11-19 05:09:22,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 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) [2021-11-19 05:09:22,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2021-11-19 05:09:22,043 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 26 [2021-11-19 05:09:22,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:09:22,043 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2021-11-19 05:09:22,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 states have internal predecessors, (68), 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) [2021-11-19 05:09:22,043 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2021-11-19 05:09:22,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-19 05:09:22,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:22,044 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:22,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 05:09:22,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:09:22,245 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:22,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:22,246 INFO L85 PathProgramCache]: Analyzing trace with hash -154506453, now seen corresponding path program 2 times [2021-11-19 05:09:22,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:22,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969641795] [2021-11-19 05:09:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:22,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:22,278 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 05:09:22,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:22,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969641795] [2021-11-19 05:09:22,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969641795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:09:22,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:09:22,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 05:09:22,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759116600] [2021-11-19 05:09:22,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:09:22,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:09:22,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:09:22,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:09:22,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:09:22,281 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-11-19 05:09:22,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:09:22,297 INFO L93 Difference]: Finished difference Result 126 states and 153 transitions. [2021-11-19 05:09:22,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:09:22,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 32 [2021-11-19 05:09:22,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:09:22,298 INFO L225 Difference]: With dead ends: 126 [2021-11-19 05:09:22,298 INFO L226 Difference]: Without dead ends: 72 [2021-11-19 05:09:22,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:09:22,300 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 15 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:09:22,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 68 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:09:22,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-19 05:09:22,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 61. [2021-11-19 05:09:22,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.15) internal successors, (69), 60 states have internal predecessors, (69), 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) [2021-11-19 05:09:22,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2021-11-19 05:09:22,310 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 32 [2021-11-19 05:09:22,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:09:22,312 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2021-11-19 05:09:22,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-11-19 05:09:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2021-11-19 05:09:22,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-19 05:09:22,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:09:22,321 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:09:22,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-19 05:09:22,321 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:09:22,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:09:22,322 INFO L85 PathProgramCache]: Analyzing trace with hash -972154903, now seen corresponding path program 1 times [2021-11-19 05:09:22,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:09:22,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50634708] [2021-11-19 05:09:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:22,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:09:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:22,800 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:22,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:09:22,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50634708] [2021-11-19 05:09:22,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50634708] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:09:22,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566911268] [2021-11-19 05:09:22,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:09:22,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:09:22,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:09:22,802 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:09:22,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48884e87-0aea-42f9-bd1b-1926d65c6ea5/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 05:09:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:09:22,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-19 05:09:22,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:09:22,884 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 05:09:22,988 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 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 05:09:23,044 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 05:09:23,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-19 05:09:23,091 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 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-19 05:09:23,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 05:09:23,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-19 05:09:23,184 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-19 05:09:23,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2021-11-19 05:09:23,205 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-19 05:09:23,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 17 [2021-11-19 05:09:23,367 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-19 05:09:23,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 59 [2021-11-19 05:09:23,389 INFO L354 Elim1Store]: treesize reduction 108, result has 16.3 percent of original size [2021-11-19 05:09:23,390 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 68 treesize of output 37 [2021-11-19 05:09:23,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 05:09:23,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39 [2021-11-19 05:09:23,528 INFO L354 Elim1Store]: treesize reduction 58, result has 40.2 percent of original size [2021-11-19 05:09:23,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 62 [2021-11-19 05:09:23,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2021-11-19 05:09:23,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 05:09:23,903 INFO L354 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2021-11-19 05:09:23,908 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 2 case distinctions, treesize of input 45 treesize of output 35 [2021-11-19 05:09:24,156 INFO L354 Elim1Store]: treesize reduction 98, result has 33.8 percent of original size [2021-11-19 05:09:24,157 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 6 case distinctions, treesize of input 49 treesize of output 67 [2021-11-19 05:09:24,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-19 05:09:24,366 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:09:24,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:09:24,955 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_6 Int) (|ULTIMATE.start_main_~t~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~t~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~t~0#1.base|) (+ |ULTIMATE.start_main_~t~0#1.offset| 4) v_DerPreprocessor_6)) |c_ULTIMATE.start_main_~l1~0#1.base|) |c_ULTIMATE.start_main_~l1~0#1.offset|) 1)) is different from false [2021-11-19 05:09:25,538 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_6 Int) (|ULTIMATE.start_main_~t~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |ULTIMATE.start_main_~t~0#1.offset| 4) v_DerPreprocessor_6)) |c_ULTIMATE.start_main_~l1~0#1.base|) |c_ULTIMATE.start_main_~l1~0#1.offset|) 1)) is different from false [2021-11-19 05:09:40,288 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_DerPreprocessor_8 Int) (|v_ULTIMATE.start_main_~t~0#1.offset_21| Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int)) (let ((.cse3 (store |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset| 3)))) (let ((.cse4 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= (select (select (let ((.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse0 (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse4 .cse2 v_DerPreprocessor_7))) (.cse1 (select (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset| v_DerPreprocessor_8)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (store .cse0 .cse1 (store (select .cse0 .cse1) (+ |v_ULTIMATE.start_main_~t~0#1.offset_21| 4) v_DerPreprocessor_6)))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) 3))))) is different from false [2021-11-19 05:09:42,381 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~t~0#1.base| Int) (v_DerPreprocessor_9 Int) (v_DerPreprocessor_8 Int) (|v_ULTIMATE.start_main_~t~0#1.offset_21| Int) (|v_ULTIMATE.start_main_~p~0#1.base_57| Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int)) (let ((.cse3 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (let ((.cse5 (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse3 v_DerPreprocessor_9)))) (store .cse7 |v_ULTIMATE.start_main_~p~0#1.base_57| (store (select .cse7 |v_ULTIMATE.start_main_~p~0#1.base_57|) |c_ULTIMATE.start_main_~t~0#1.offset| 3))))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= (select (select (let ((.cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse0 (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse6 .cse4 v_DerPreprocessor_7))) (.cse1 (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) .cse3 |ULTIMATE.start_main_~t~0#1.base|)))) (store .cse2 |v_ULTIMATE.start_main_~p~0#1.base_57| (store (select .cse2 |v_ULTIMATE.start_main_~p~0#1.base_57|) |c_ULTIMATE.start_main_~t~0#1.offset| v_DerPreprocessor_8))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (store .cse0 .cse1 (store (select .cse0 .cse1) (+ |v_ULTIMATE.start_main_~t~0#1.offset_21| 4) v_DerPreprocessor_6)))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= 3 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) is different from false [2021-11-19 05:09:44,452 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~t~0#1.base| Int) (v_DerPreprocessor_9 Int) (v_DerPreprocessor_8 Int) (|v_ULTIMATE.start_main_~t~0#1.offset_21| Int) (|v_ULTIMATE.start_main_~p~0#1.base_57| Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int)) (let ((.cse3 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (let ((.cse5 (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse3 v_DerPreprocessor_9)))) (store .cse7 |v_ULTIMATE.start_main_~p~0#1.base_57| (store (select .cse7 |v_ULTIMATE.start_main_~p~0#1.base_57|) 0 3))))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= (select (select (let ((.cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse0 (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse6 .cse4 v_DerPreprocessor_7))) (.cse1 (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) .cse3 |ULTIMATE.start_main_~t~0#1.base|)))) (store .cse2 |v_ULTIMATE.start_main_~p~0#1.base_57| (store (select .cse2 |v_ULTIMATE.start_main_~p~0#1.base_57|) 0 v_DerPreprocessor_8))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (store .cse0 .cse1 (store (select .cse0 .cse1) (+ |v_ULTIMATE.start_main_~t~0#1.offset_21| 4) v_DerPreprocessor_6)))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) 3)))))) is different from false [2021-11-19 05:09:46,511 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~t~0#1.base| Int) (v_DerPreprocessor_9 Int) (v_DerPreprocessor_8 Int) (|v_ULTIMATE.start_main_~t~0#1.offset_21| Int) (|v_ULTIMATE.start_main_~p~0#1.base_57| Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (|ULTIMATE.start_main_~p~0#1.offset| Int) (v_DerPreprocessor_10 Int)) (let ((.cse3 (+ |ULTIMATE.start_main_~p~0#1.offset| 4))) (let ((.cse5 (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset| 2) .cse3 v_DerPreprocessor_9)))) (store .cse7 |v_ULTIMATE.start_main_~p~0#1.base_57| (store (select .cse7 |v_ULTIMATE.start_main_~p~0#1.base_57|) 0 3))))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= (select (select (let ((.cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse0 (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse6 .cse4 v_DerPreprocessor_7))) (.cse1 (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset| v_DerPreprocessor_10) .cse3 |ULTIMATE.start_main_~t~0#1.base|)))) (store .cse2 |v_ULTIMATE.start_main_~p~0#1.base_57| (store (select .cse2 |v_ULTIMATE.start_main_~p~0#1.base_57|) 0 v_DerPreprocessor_8))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (store .cse0 .cse1 (store (select .cse0 .cse1) (+ |v_ULTIMATE.start_main_~t~0#1.offset_21| 4) v_DerPreprocessor_6)))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) 3)))))) is different from false [2021-11-19 05:09:46,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3191 treesize of output 3179