./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext2-properties/simple_search_value-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-ext2-properties/simple_search_value-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y --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 9339a3186df1139a7984a9803a310ef99d020bdafafac2d122ebd6ff2b132483 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:34:42,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:34:42,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:34:42,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:34:42,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:34:42,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:34:42,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:34:42,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:34:42,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:34:42,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:34:42,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:34:42,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:34:42,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:34:42,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:34:42,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:34:42,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:34:42,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:34:42,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:34:42,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:34:42,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:34:42,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:34:42,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:34:42,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:34:42,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:34:42,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:34:42,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:34:42,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:34:42,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:34:42,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:34:42,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:34:42,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:34:42,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:34:42,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:34:42,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:34:42,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:34:42,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:34:42,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:34:42,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:34:42,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:34:42,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:34:42,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:34:42,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 17:34:42,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:34:42,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:34:42,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:34:42,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:34:42,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:34:42,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:34:42,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:34:42,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:34:42,885 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:34:42,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:34:42,886 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:34:42,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:34:42,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:34:42,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:34:42,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:34:42,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:34:42,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:34:42,888 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:34:42,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:34:42,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:34:42,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:34:42,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:34:42,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:34:42,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:34:42,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:34:42,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:34:42,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:34:42,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:34:42,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:34:42,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:34:42,892 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:34:42,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:34:42,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:34:42,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:34:42,893 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_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9339a3186df1139a7984a9803a310ef99d020bdafafac2d122ebd6ff2b132483 [2021-11-13 17:34:43,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:34:43,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:34:43,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:34:43,171 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:34:43,172 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:34:43,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/list-ext2-properties/simple_search_value-1.i [2021-11-13 17:34:43,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/data/bce4f31e4/31853366fbc341819d7171a2a3ddeaa8/FLAG73d08708e [2021-11-13 17:34:43,913 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:34:43,914 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/sv-benchmarks/c/list-ext2-properties/simple_search_value-1.i [2021-11-13 17:34:43,936 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/data/bce4f31e4/31853366fbc341819d7171a2a3ddeaa8/FLAG73d08708e [2021-11-13 17:34:44,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/data/bce4f31e4/31853366fbc341819d7171a2a3ddeaa8 [2021-11-13 17:34:44,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:34:44,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:34:44,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:34:44,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:34:44,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:34:44,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e204ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44, skipping insertion in model container [2021-11-13 17:34:44,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:34:44,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:34:44,557 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/sv-benchmarks/c/list-ext2-properties/simple_search_value-1.i[23210,23223] [2021-11-13 17:34:44,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:34:44,570 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:34:44,632 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/sv-benchmarks/c/list-ext2-properties/simple_search_value-1.i[23210,23223] [2021-11-13 17:34:44,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:34:44,678 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:34:44,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44 WrapperNode [2021-11-13 17:34:44,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:34:44,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:34:44,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:34:44,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:34:44,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:34:44,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:34:44,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:34:44,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:34:44,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:34:44,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:34:44,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:34:44,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:34:44,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (1/1) ... [2021-11-13 17:34:44,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:34:44,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:34:44,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:34:44,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:34:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-13 17:34:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-13 17:34:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:34:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:34:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:34:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:34:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:34:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:34:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:34:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:34:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:34:45,044 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-11-13 17:34:45,225 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:34:45,225 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 17:34:45,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:34:45 BoogieIcfgContainer [2021-11-13 17:34:45,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:34:45,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:34:45,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:34:45,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:34:45,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:34:44" (1/3) ... [2021-11-13 17:34:45,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e78f03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:34:45, skipping insertion in model container [2021-11-13 17:34:45,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:44" (2/3) ... [2021-11-13 17:34:45,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e78f03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:34:45, skipping insertion in model container [2021-11-13 17:34:45,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:34:45" (3/3) ... [2021-11-13 17:34:45,240 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_search_value-1.i [2021-11-13 17:34:45,246 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:34:45,246 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:34:45,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:34:45,302 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 [2021-11-13 17:34:45,302 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:34:45,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 22 states have (on average 1.5) internal successors, (33), 24 states have internal predecessors, (33), 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) [2021-11-13 17:34:45,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 17:34:45,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:45,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:45,326 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:34:45,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:45,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2087165485, now seen corresponding path program 1 times [2021-11-13 17:34:45,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:45,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156210571] [2021-11-13 17:34:45,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:45,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:45,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:34:45,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:45,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156210571] [2021-11-13 17:34:45,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156210571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:45,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:45,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 17:34:45,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142473075] [2021-11-13 17:34:45,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:45,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:34:45,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:45,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:34:45,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:34:45,542 INFO L87 Difference]: Start difference. First operand has 26 states, 22 states have (on average 1.5) internal successors, (33), 24 states have internal predecessors, (33), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:45,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:45,562 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2021-11-13 17:34:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:34:45,564 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-13 17:34:45,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:45,571 INFO L225 Difference]: With dead ends: 39 [2021-11-13 17:34:45,572 INFO L226 Difference]: Without dead ends: 18 [2021-11-13 17:34:45,575 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 [2021-11-13 17:34:45,579 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.83ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:45,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.83ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:34:45,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-13 17:34:45,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-13 17:34:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:45,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-11-13 17:34:45,616 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 9 [2021-11-13 17:34:45,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:45,617 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-11-13 17:34:45,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:45,617 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-11-13 17:34:45,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 17:34:45,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:45,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:45,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:34:45,619 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:34:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:45,620 INFO L85 PathProgramCache]: Analyzing trace with hash -2034265922, now seen corresponding path program 1 times [2021-11-13 17:34:45,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:45,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151406155] [2021-11-13 17:34:45,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:45,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:45,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:34:45,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:45,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151406155] [2021-11-13 17:34:45,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151406155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:45,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:45,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:34:45,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465259852] [2021-11-13 17:34:45,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:45,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:34:45,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:45,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:34:45,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:34:45,680 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:45,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:45,714 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2021-11-13 17:34:45,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:34:45,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-13 17:34:45,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:45,720 INFO L225 Difference]: With dead ends: 28 [2021-11-13 17:34:45,721 INFO L226 Difference]: Without dead ends: 19 [2021-11-13 17:34:45,722 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 [2021-11-13 17:34:45,724 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.45ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:45,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 6 Unknown, 0 Unchecked, 1.12ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 27.45ms Time] [2021-11-13 17:34:45,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-13 17:34:45,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-13 17:34:45,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:45,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-11-13 17:34:45,735 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2021-11-13 17:34:45,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:45,737 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-13 17:34:45,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:45,740 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-11-13 17:34:45,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 17:34:45,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:45,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:45,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:34:45,743 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:34:45,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:45,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1977007620, now seen corresponding path program 1 times [2021-11-13 17:34:45,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:45,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266266356] [2021-11-13 17:34:45,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:45,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:45,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:34:45,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:45,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266266356] [2021-11-13 17:34:45,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266266356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:45,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:45,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:34:45,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106679609] [2021-11-13 17:34:45,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:45,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:34:45,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:45,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:34:45,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:34:45,862 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:45,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:45,931 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-11-13 17:34:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:34:45,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-13 17:34:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:45,933 INFO L225 Difference]: With dead ends: 39 [2021-11-13 17:34:45,933 INFO L226 Difference]: Without dead ends: 24 [2021-11-13 17:34:45,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:34:45,935 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.30ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.30ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:45,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 17 Unknown, 0 Unchecked, 1.30ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 51.30ms Time] [2021-11-13 17:34:45,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-13 17:34:45,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2021-11-13 17:34:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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) [2021-11-13 17:34:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-11-13 17:34:45,943 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 11 [2021-11-13 17:34:45,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:45,944 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-11-13 17:34:45,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:45,944 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-11-13 17:34:45,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 17:34:45,946 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:45,947 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:45,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:34:45,948 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:34:45,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1102443704, now seen corresponding path program 1 times [2021-11-13 17:34:45,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:45,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200497639] [2021-11-13 17:34:45,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:45,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 17:34:46,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:46,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200497639] [2021-11-13 17:34:46,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200497639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:46,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:46,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:34:46,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805158403] [2021-11-13 17:34:46,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:46,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:34:46,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:46,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:34:46,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:34:46,099 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:46,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:46,134 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2021-11-13 17:34:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:34:46,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-13 17:34:46,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:46,136 INFO L225 Difference]: With dead ends: 32 [2021-11-13 17:34:46,136 INFO L226 Difference]: Without dead ends: 29 [2021-11-13 17:34:46,136 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 [2021-11-13 17:34:46,138 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 27 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.30ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.16ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:46,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 27 Invalid, 18 Unknown, 0 Unchecked, 1.30ms Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 23.16ms Time] [2021-11-13 17:34:46,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-13 17:34:46,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2021-11-13 17:34:46,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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) [2021-11-13 17:34:46,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-11-13 17:34:46,144 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 16 [2021-11-13 17:34:46,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:46,145 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-11-13 17:34:46,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:46,145 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-11-13 17:34:46,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 17:34:46,146 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:46,146 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:46,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:34:46,147 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:34:46,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:46,148 INFO L85 PathProgramCache]: Analyzing trace with hash 379985990, now seen corresponding path program 1 times [2021-11-13 17:34:46,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:46,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733152423] [2021-11-13 17:34:46,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:46,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:46,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:34:46,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:46,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733152423] [2021-11-13 17:34:46,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733152423] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:34:46,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821298765] [2021-11-13 17:34:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:46,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:34:46,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:34:46,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:34:46,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 17:34:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:46,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:34:46,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:34:46,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:34:46,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:34:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:34:46,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821298765] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:34:46,587 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 17:34:46,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2021-11-13 17:34:46,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168011023] [2021-11-13 17:34:46,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 17:34:46,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:34:46,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:46,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:34:46,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:34:46,591 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-11-13 17:34:46,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:46,725 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2021-11-13 17:34:46,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:34:46,726 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 21 [2021-11-13 17:34:46,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:46,728 INFO L225 Difference]: With dead ends: 56 [2021-11-13 17:34:46,729 INFO L226 Difference]: Without dead ends: 40 [2021-11-13 17:34:46,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:34:46,737 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.22ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.36ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:46,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 81 Invalid, 43 Unknown, 0 Unchecked, 7.22ms Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 58.36ms Time] [2021-11-13 17:34:46,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-13 17:34:46,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2021-11-13 17:34:46,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 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) [2021-11-13 17:34:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2021-11-13 17:34:46,757 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 21 [2021-11-13 17:34:46,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:46,758 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-11-13 17:34:46,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-11-13 17:34:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2021-11-13 17:34:46,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-13 17:34:46,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:46,760 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:46,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:34:46,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:34:46,979 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:34:46,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:46,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1481516270, now seen corresponding path program 2 times [2021-11-13 17:34:46,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:46,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071404526] [2021-11-13 17:34:46,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:46,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:47,184 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:34:47,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:47,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071404526] [2021-11-13 17:34:47,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071404526] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:34:47,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662608397] [2021-11-13 17:34:47,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:34:47,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:34:47,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:34:47,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:34:47,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 17:34:47,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:34:47,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:34:47,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:34:47,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:34:47,458 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:34:47,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:34:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:34:47,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662608397] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:34:47,632 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 17:34:47,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2021-11-13 17:34:47,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75067694] [2021-11-13 17:34:47,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 17:34:47,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 17:34:47,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:47,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 17:34:47,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-11-13 17:34:47,638 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 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) [2021-11-13 17:34:47,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:47,896 INFO L93 Difference]: Finished difference Result 86 states and 100 transitions. [2021-11-13 17:34:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-13 17:34:47,897 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 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 36 [2021-11-13 17:34:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:47,899 INFO L225 Difference]: With dead ends: 86 [2021-11-13 17:34:47,899 INFO L226 Difference]: Without dead ends: 70 [2021-11-13 17:34:47,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2021-11-13 17:34:47,902 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 55 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.91ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110.81ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:47,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 87 Invalid, 82 Unknown, 0 Unchecked, 4.91ms Time], IncrementalHoareTripleChecker [23 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 110.81ms Time] [2021-11-13 17:34:47,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-13 17:34:47,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2021-11-13 17:34:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.0757575757575757) internal successors, (71), 66 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:47,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2021-11-13 17:34:47,918 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 36 [2021-11-13 17:34:47,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:47,920 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2021-11-13 17:34:47,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 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) [2021-11-13 17:34:47,921 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2021-11-13 17:34:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 17:34:47,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:47,925 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:47,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:34:48,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:34:48,140 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:34:48,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:48,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1904311442, now seen corresponding path program 3 times [2021-11-13 17:34:48,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:48,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541835939] [2021-11-13 17:34:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:48,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-13 17:34:48,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:48,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541835939] [2021-11-13 17:34:48,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541835939] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:34:48,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206485534] [2021-11-13 17:34:48,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 17:34:48,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:34:48,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:34:48,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:34:48,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f7b9b6-cb5c-4853-9d78-48ee2698ff7b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 17:34:51,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-11-13 17:34:51,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:34:52,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 127 conjunts are in the unsatisfiable core [2021-11-13 17:34:52,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:34:52,055 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 [2021-11-13 17:34:52,187 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 17:34:52,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 treesize of output 21 [2021-11-13 17:34:52,309 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 27 treesize of output 23 [2021-11-13 17:34:52,443 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-13 17:34:52,444 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 72 treesize of output 42 [2021-11-13 17:34:52,474 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-13 17:34:52,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 50 [2021-11-13 17:34:52,612 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-13 17:34:52,612 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 91 treesize of output 57 [2021-11-13 17:34:52,864 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-11-13 17:34:52,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 61 [2021-11-13 17:34:52,891 INFO L354 Elim1Store]: treesize reduction 72, result has 30.1 percent of original size [2021-11-13 17:34:52,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 116 [2021-11-13 17:34:53,079 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-11-13 17:34:53,080 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 147 treesize of output 71 [2021-11-13 17:34:53,344 INFO L354 Elim1Store]: treesize reduction 150, result has 15.7 percent of original size [2021-11-13 17:34:53,345 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 65 [2021-11-13 17:34:53,561 INFO L354 Elim1Store]: treesize reduction 150, result has 15.7 percent of original size [2021-11-13 17:34:53,561 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 192 treesize of output 74 [2021-11-13 17:34:53,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:34:53,836 INFO L354 Elim1Store]: treesize reduction 96, result has 28.9 percent of original size [2021-11-13 17:34:53,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 158 treesize of output 82 [2021-11-13 17:34:54,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:34:54,405 INFO L354 Elim1Store]: treesize reduction 106, result has 31.2 percent of original size [2021-11-13 17:34:54,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 102 [2021-11-13 17:34:56,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 17:34:56,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:34:57,025 INFO L354 Elim1Store]: treesize reduction 313, result has 17.4 percent of original size [2021-11-13 17:34:57,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 149 treesize of output 163 [2021-11-13 17:35:05,451 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 17:35:05,854 INFO L354 Elim1Store]: treesize reduction 751, result has 17.8 percent of original size [2021-11-13 17:35:05,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 265 treesize of output 299 [2021-11-13 17:42:49,375 WARN L227 SmtUtils]: Spent 2.43m on a formula simplification. DAG size of input: 3486 DAG size of output: 1723 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 17:42:49,389 INFO L354 Elim1Store]: treesize reduction 9268, result has 27.6 percent of original size [2021-11-13 17:42:49,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 1 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 857 case distinctions, treesize of input 1474 treesize of output 4336