./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/rewnifrev.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-tiling/rewnifrev.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF --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 62ffb246c1e6cc2a3d3d5a08bb5a65a9894a173aba5be4caac9150f1d27ccfed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:26:29,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:26:29,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:26:29,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:26:29,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:26:29,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:26:29,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:26:29,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:26:29,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:26:29,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:26:29,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:26:29,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:26:29,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:26:29,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:26:29,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:26:29,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:26:29,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:26:29,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:26:29,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:26:29,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:26:29,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:26:29,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:26:29,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:26:29,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:26:29,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:26:29,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:26:29,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:26:29,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:26:29,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:26:29,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:26:29,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:26:29,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:26:29,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:26:29,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:26:29,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:26:29,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:26:29,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:26:29,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:26:29,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:26:29,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:26:29,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:26:29,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:26:29,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:26:29,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:26:29,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:26:29,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:26:29,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:26:29,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:26:29,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:26:29,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:26:29,155 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:26:29,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:26:29,157 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:26:29,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:26:29,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:26:29,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:26:29,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:26:29,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:26:29,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:26:29,159 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:26:29,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:26:29,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:26:29,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:26:29,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:26:29,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:26:29,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:26:29,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:26:29,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:26:29,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:26:29,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:26:29,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:26:29,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:26:29,162 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:26:29,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:26:29,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:26:29,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:26:29,163 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_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62ffb246c1e6cc2a3d3d5a08bb5a65a9894a173aba5be4caac9150f1d27ccfed [2021-11-20 06:26:29,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:26:29,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:26:29,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:26:29,485 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:26:29,486 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:26:29,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/array-tiling/rewnifrev.c [2021-11-20 06:26:29,569 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/data/92abebc0b/e1ad52666ad341a59e85a4b965fb4daa/FLAG15606b45c [2021-11-20 06:26:29,997 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:26:29,998 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/sv-benchmarks/c/array-tiling/rewnifrev.c [2021-11-20 06:26:30,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/data/92abebc0b/e1ad52666ad341a59e85a4b965fb4daa/FLAG15606b45c [2021-11-20 06:26:30,385 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/data/92abebc0b/e1ad52666ad341a59e85a4b965fb4daa [2021-11-20 06:26:30,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:26:30,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:26:30,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:26:30,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:26:30,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:26:30,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd1788a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30, skipping insertion in model container [2021-11-20 06:26:30,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:26:30,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:26:30,593 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_6c0f3498-608c-4b7d-8334-ffe146887cc8/sv-benchmarks/c/array-tiling/rewnifrev.c[400,413] [2021-11-20 06:26:30,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:26:30,613 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:26:30,624 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_6c0f3498-608c-4b7d-8334-ffe146887cc8/sv-benchmarks/c/array-tiling/rewnifrev.c[400,413] [2021-11-20 06:26:30,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:26:30,643 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:26:30,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30 WrapperNode [2021-11-20 06:26:30,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:26:30,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:26:30,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:26:30,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:26:30,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,684 INFO L137 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2021-11-20 06:26:30,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:26:30,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:26:30,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:26:30,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:26:30,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:26:30,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:26:30,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:26:30,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:26:30,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (1/1) ... [2021-11-20 06:26:30,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:26:30,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:26:30,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:26:30,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:26:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:26:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:26:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:26:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:26:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:26:30,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:26:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:26:30,882 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:26:30,883 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:26:30,987 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:26:30,993 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:26:30,993 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:26:30,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:30 BoogieIcfgContainer [2021-11-20 06:26:30,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:26:30,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:26:30,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:26:31,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:26:31,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:26:30" (1/3) ... [2021-11-20 06:26:31,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f13af59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:26:31, skipping insertion in model container [2021-11-20 06:26:31,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:30" (2/3) ... [2021-11-20 06:26:31,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f13af59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:26:31, skipping insertion in model container [2021-11-20 06:26:31,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:30" (3/3) ... [2021-11-20 06:26:31,004 INFO L111 eAbstractionObserver]: Analyzing ICFG rewnifrev.c [2021-11-20 06:26:31,010 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:26:31,010 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:26:31,061 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:26:31,070 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 [2021-11-20 06:26:31,070 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:26:31,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 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) [2021-11-20 06:26:31,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 06:26:31,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:31,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:31,093 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:31,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:31,099 INFO L85 PathProgramCache]: Analyzing trace with hash 133671584, now seen corresponding path program 1 times [2021-11-20 06:26:31,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:31,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865203299] [2021-11-20 06:26:31,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:31,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:31,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:31,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865203299] [2021-11-20 06:26:31,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865203299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:31,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:31,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:26:31,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435902160] [2021-11-20 06:26:31,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:31,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:26:31,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:31,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:26:31,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:26:31,329 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:31,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:31,342 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2021-11-20 06:26:31,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:26:31,345 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-20 06:26:31,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:31,351 INFO L225 Difference]: With dead ends: 29 [2021-11-20 06:26:31,351 INFO L226 Difference]: Without dead ends: 14 [2021-11-20 06:26:31,354 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 [2021-11-20 06:26:31,358 INFO L933 BasicCegarLoop]: 21 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, 21 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 [2021-11-20 06:26:31,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:26:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-20 06:26:31,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-20 06:26:31,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 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) [2021-11-20 06:26:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-11-20 06:26:31,388 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2021-11-20 06:26:31,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:31,389 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-20 06:26:31,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:31,389 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-20 06:26:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 06:26:31,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:31,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:31,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:26:31,391 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:31,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:31,392 INFO L85 PathProgramCache]: Analyzing trace with hash 121665811, now seen corresponding path program 1 times [2021-11-20 06:26:31,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:31,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502472141] [2021-11-20 06:26:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:31,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:31,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:31,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:31,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502472141] [2021-11-20 06:26:31,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502472141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:31,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:31,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:26:31,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482640225] [2021-11-20 06:26:31,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:31,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:26:31,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:31,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:26:31,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:26:31,454 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:31,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:31,485 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-11-20 06:26:31,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:26:31,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-20 06:26:31,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:31,487 INFO L225 Difference]: With dead ends: 29 [2021-11-20 06:26:31,487 INFO L226 Difference]: Without dead ends: 18 [2021-11-20 06:26:31,488 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 [2021-11-20 06:26:31,490 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:31,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 17 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:26:31,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-20 06:26:31,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-11-20 06:26:31,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:31,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-11-20 06:26:31,495 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2021-11-20 06:26:31,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:31,496 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-11-20 06:26:31,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-11-20 06:26:31,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 06:26:31,497 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:31,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:31,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:26:31,498 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:31,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:31,499 INFO L85 PathProgramCache]: Analyzing trace with hash 729197006, now seen corresponding path program 1 times [2021-11-20 06:26:31,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:31,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713034291] [2021-11-20 06:26:31,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:31,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:31,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:31,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:31,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713034291] [2021-11-20 06:26:31,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713034291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:31,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:31,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:26:31,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865286227] [2021-11-20 06:26:31,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:31,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:31,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:31,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:31,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:31,592 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2021-11-20 06:26:31,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:31,672 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-11-20 06:26:31,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:31,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 [2021-11-20 06:26:31,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:31,673 INFO L225 Difference]: With dead ends: 32 [2021-11-20 06:26:31,674 INFO L226 Difference]: Without dead ends: 25 [2021-11-20 06:26:31,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:31,676 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 18 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:31,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 18 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:26:31,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-20 06:26:31,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2021-11-20 06:26:31,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2021-11-20 06:26:31,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-20 06:26:31,690 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2021-11-20 06:26:31,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:31,690 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-20 06:26:31,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2021-11-20 06:26:31,690 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-20 06:26:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-20 06:26:31,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:31,691 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:31,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:26:31,692 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:31,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:31,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1021157689, now seen corresponding path program 1 times [2021-11-20 06:26:31,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:31,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115188474] [2021-11-20 06:26:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:31,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:26:32,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:32,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115188474] [2021-11-20 06:26:32,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115188474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:32,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:32,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:26:32,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661629110] [2021-11-20 06:26:32,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:32,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:26:32,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:26:32,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:26:32,129 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:32,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:32,275 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2021-11-20 06:26:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:26:32,276 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-20 06:26:32,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:32,281 INFO L225 Difference]: With dead ends: 27 [2021-11-20 06:26:32,282 INFO L226 Difference]: Without dead ends: 25 [2021-11-20 06:26:32,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:26:32,293 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 21 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:32,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:26:32,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-20 06:26:32,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2021-11-20 06:26:32,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 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) [2021-11-20 06:26:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2021-11-20 06:26:32,310 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16 [2021-11-20 06:26:32,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:32,311 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-11-20 06:26:32,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:32,311 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2021-11-20 06:26:32,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 06:26:32,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:32,313 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:32,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:26:32,313 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:32,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:32,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1566850755, now seen corresponding path program 1 times [2021-11-20 06:26:32,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:32,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954337555] [2021-11-20 06:26:32,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:32,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:32,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:32,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954337555] [2021-11-20 06:26:32,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954337555] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:26:32,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315019335] [2021-11-20 06:26:32,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:32,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:26:32,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:26:32,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:26:32,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:26:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:32,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-20 06:26:32,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:26:32,750 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 15 treesize of output 11 [2021-11-20 06:26:33,059 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-20 06:26:33,060 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 21 treesize of output 20 [2021-11-20 06:26:33,257 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-20 06:26:33,257 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 44 treesize of output 28 [2021-11-20 06:26:33,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:33,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:26:34,211 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 32 treesize of output 30 [2021-11-20 06:26:34,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 186 [2021-11-20 06:26:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:34,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315019335] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:26:34,305 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:26:34,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2021-11-20 06:26:34,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730879211] [2021-11-20 06:26:34,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:26:34,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-20 06:26:34,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:34,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 06:26:34,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=346, Unknown=1, NotChecked=0, Total=462 [2021-11-20 06:26:34,309 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 22 states, 22 states have (on average 2.1363636363636362) internal successors, (47), 22 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:34,815 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2021-11-20 06:26:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 06:26:34,815 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.1363636363636362) internal successors, (47), 22 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-20 06:26:34,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:34,817 INFO L225 Difference]: With dead ends: 51 [2021-11-20 06:26:34,817 INFO L226 Difference]: Without dead ends: 49 [2021-11-20 06:26:34,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 31 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=318, Invalid=1013, Unknown=1, NotChecked=0, Total=1332 [2021-11-20 06:26:34,819 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 117 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:34,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 58 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 148 Invalid, 0 Unknown, 52 Unchecked, 0.2s Time] [2021-11-20 06:26:34,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-20 06:26:34,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 25. [2021-11-20 06:26:34,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:34,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-11-20 06:26:34,835 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 20 [2021-11-20 06:26:34,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:34,836 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-11-20 06:26:34,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.1363636363636362) internal successors, (47), 22 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:34,837 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-11-20 06:26:34,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 06:26:34,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:34,838 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:34,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:26:35,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:26:35,067 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:35,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:35,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1995245389, now seen corresponding path program 2 times [2021-11-20 06:26:35,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:35,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112167949] [2021-11-20 06:26:35,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:35,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:35,160 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:35,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:35,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112167949] [2021-11-20 06:26:35,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112167949] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:26:35,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928585690] [2021-11-20 06:26:35,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:26:35,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:26:35,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:26:35,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:26:35,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:26:35,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:26:35,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:26:35,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:26:35,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:26:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:35,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:26:35,451 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:35,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928585690] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:26:35,452 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:26:35,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 12 [2021-11-20 06:26:35,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5718349] [2021-11-20 06:26:35,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:26:35,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:26:35,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:35,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:26:35,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:26:35,456 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-11-20 06:26:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:35,539 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2021-11-20 06:26:35,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:26:35,542 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 24 [2021-11-20 06:26:35,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:35,544 INFO L225 Difference]: With dead ends: 56 [2021-11-20 06:26:35,544 INFO L226 Difference]: Without dead ends: 31 [2021-11-20 06:26:35,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=91, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:26:35,546 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:35,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 38 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:26:35,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-20 06:26:35,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-11-20 06:26:35,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 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) [2021-11-20 06:26:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-11-20 06:26:35,558 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 24 [2021-11-20 06:26:35,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:35,558 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-11-20 06:26:35,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-11-20 06:26:35,559 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-11-20 06:26:35,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 06:26:35,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:35,561 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:35,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:26:35,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 06:26:35,786 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:35,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:35,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1191072622, now seen corresponding path program 3 times [2021-11-20 06:26:35,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:35,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549065276] [2021-11-20 06:26:35,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:35,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:36,280 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:36,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:36,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549065276] [2021-11-20 06:26:36,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549065276] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:26:36,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400615433] [2021-11-20 06:26:36,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 06:26:36,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:26:36,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:26:36,283 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:26:36,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:26:36,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-20 06:26:36,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:26:36,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-20 06:26:36,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:26:36,364 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 15 treesize of output 11 [2021-11-20 06:26:36,441 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-20 06:26:36,442 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 33 treesize of output 32 [2021-11-20 06:26:36,495 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-20 06:26:36,495 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 44 treesize of output 46 [2021-11-20 06:26:36,761 INFO L354 Elim1Store]: treesize reduction 130, result has 16.1 percent of original size [2021-11-20 06:26:36,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 57 [2021-11-20 06:26:37,431 INFO L354 Elim1Store]: treesize reduction 82, result has 3.5 percent of original size [2021-11-20 06:26:37,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 73 treesize of output 48 [2021-11-20 06:26:37,464 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:37,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:26:37,842 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 33 treesize of output 31 [2021-11-20 06:26:37,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 88 [2021-11-20 06:26:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:37,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400615433] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:26:37,870 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:26:37,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 12] total 34 [2021-11-20 06:26:37,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952357173] [2021-11-20 06:26:37,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:26:37,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-20 06:26:37,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:37,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-20 06:26:37,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 06:26:37,873 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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) [2021-11-20 06:26:38,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:38,389 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2021-11-20 06:26:38,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 06:26:38,393 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 28 [2021-11-20 06:26:38,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:38,395 INFO L225 Difference]: With dead ends: 40 [2021-11-20 06:26:38,396 INFO L226 Difference]: Without dead ends: 38 [2021-11-20 06:26:38,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=481, Invalid=1499, Unknown=0, NotChecked=0, Total=1980 [2021-11-20 06:26:38,399 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 17 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:38,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 60 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 140 Invalid, 0 Unknown, 38 Unchecked, 0.2s Time] [2021-11-20 06:26:38,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-20 06:26:38,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2021-11-20 06:26:38,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 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) [2021-11-20 06:26:38,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-11-20 06:26:38,409 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 28 [2021-11-20 06:26:38,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:38,410 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-11-20 06:26:38,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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) [2021-11-20 06:26:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-11-20 06:26:38,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 06:26:38,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:38,411 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:38,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:26:38,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:26:38,632 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:38,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:38,633 INFO L85 PathProgramCache]: Analyzing trace with hash 948898404, now seen corresponding path program 4 times [2021-11-20 06:26:38,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:38,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769376847] [2021-11-20 06:26:38,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:38,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:38,727 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:38,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:38,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769376847] [2021-11-20 06:26:38,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769376847] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:26:38,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914789636] [2021-11-20 06:26:38,728 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 06:26:38,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:26:38,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:26:38,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:26:38,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:26:38,787 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 06:26:38,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:26:38,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:26:38,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:26:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:38,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:26:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:39,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914789636] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:26:39,083 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:26:39,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 15 [2021-11-20 06:26:39,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885602075] [2021-11-20 06:26:39,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:26:39,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 06:26:39,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:39,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 06:26:39,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=124, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:26:39,086 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 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) [2021-11-20 06:26:39,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:39,191 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2021-11-20 06:26:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 06:26:39,191 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 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 [2021-11-20 06:26:39,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:39,195 INFO L225 Difference]: With dead ends: 68 [2021-11-20 06:26:39,195 INFO L226 Difference]: Without dead ends: 39 [2021-11-20 06:26:39,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=142, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:26:39,197 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:39,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 40 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:26:39,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-20 06:26:39,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2021-11-20 06:26:39,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 36 states have internal predecessors, (39), 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) [2021-11-20 06:26:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-11-20 06:26:39,214 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 32 [2021-11-20 06:26:39,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:39,217 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-11-20 06:26:39,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 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) [2021-11-20 06:26:39,217 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-11-20 06:26:39,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-20 06:26:39,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:39,222 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:39,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:26:39,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:26:39,446 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:39,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:39,447 INFO L85 PathProgramCache]: Analyzing trace with hash 947747359, now seen corresponding path program 5 times [2021-11-20 06:26:39,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:39,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897161585] [2021-11-20 06:26:39,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:39,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 17 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:39,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:39,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897161585] [2021-11-20 06:26:39,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897161585] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:26:39,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277567580] [2021-11-20 06:26:39,937 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 06:26:39,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:26:39,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:26:39,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:26:39,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 06:26:40,008 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-11-20 06:26:40,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:26:40,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-20 06:26:40,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:26:40,068 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 15 treesize of output 11 [2021-11-20 06:26:40,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,158 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 33 treesize of output 32 [2021-11-20 06:26:40,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,233 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:26:40,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 46 [2021-11-20 06:26:40,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,406 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:26:40,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 65 [2021-11-20 06:26:40,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:40,497 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:26:40,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 68 [2021-11-20 06:26:40,863 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-20 06:26:40,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 82 treesize of output 79 [2021-11-20 06:26:41,905 INFO L354 Elim1Store]: treesize reduction 142, result has 2.1 percent of original size [2021-11-20 06:26:41,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 57 [2021-11-20 06:26:41,959 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:41,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:26:58,980 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 80 treesize of output 78 [2021-11-20 06:26:58,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17952 treesize of output 17896 [2021-11-20 06:28:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:28:31,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277567580] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:28:31,048 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:28:31,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 19] total 49 [2021-11-20 06:28:31,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245534001] [2021-11-20 06:28:31,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:28:31,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-20 06:28:31,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:28:31,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-20 06:28:31,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=501, Invalid=1833, Unknown=18, NotChecked=0, Total=2352 [2021-11-20 06:28:31,054 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 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) [2021-11-20 06:29:43,928 WARN L227 SmtUtils]: Spent 22.17s on a formula simplification. DAG size of input: 84 DAG size of output: 75 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:30:25,729 WARN L227 SmtUtils]: Spent 15.24s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:31:31,844 WARN L227 SmtUtils]: Spent 7.74s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:31:50,889 WARN L227 SmtUtils]: Spent 18.94s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:33:09,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:09,961 INFO L93 Difference]: Finished difference Result 107 states and 124 transitions. [2021-11-20 06:33:09,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-20 06:33:09,962 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 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 [2021-11-20 06:33:09,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:09,964 INFO L225 Difference]: With dead ends: 107 [2021-11-20 06:33:09,964 INFO L226 Difference]: Without dead ends: 87 [2021-11-20 06:33:09,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 47 SyntacticMatches, 8 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3507 ImplicationChecksByTransitivity, 296.2s TimeCoverageRelationStatistics Valid=2496, Invalid=8238, Unknown=186, NotChecked=0, Total=10920 [2021-11-20 06:33:09,972 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 162 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 408 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:09,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 119 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 168 Invalid, 0 Unknown, 408 Unchecked, 0.2s Time] [2021-11-20 06:33:09,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-20 06:33:09,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 45. [2021-11-20 06:33:09,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:33:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-11-20 06:33:09,983 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 36 [2021-11-20 06:33:09,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:09,983 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-11-20 06:33:09,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 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) [2021-11-20 06:33:09,984 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-11-20 06:33:09,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 06:33:09,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:09,985 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:10,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:10,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-20 06:33:10,210 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:10,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:10,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1613367984, now seen corresponding path program 6 times [2021-11-20 06:33:10,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:10,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403751843] [2021-11-20 06:33:10,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:10,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 13 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:10,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:33:10,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403751843] [2021-11-20 06:33:10,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403751843] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:10,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812598070] [2021-11-20 06:33:10,688 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-20 06:33:10,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:10,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:10,690 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:33:10,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 06:33:10,767 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-11-20 06:33:10,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:10,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-20 06:33:10,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:10,811 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 15 treesize of output 11 [2021-11-20 06:33:10,884 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-20 06:33:10,885 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 33 treesize of output 32 [2021-11-20 06:33:10,953 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-20 06:33:10,953 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 44 treesize of output 46 [2021-11-20 06:33:11,088 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-20 06:33:11,088 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 60 treesize of output 65 [2021-11-20 06:33:11,218 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-20 06:33:11,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-20 06:33:11,408 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-20 06:33:11,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-20 06:33:11,531 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-20 06:33:11,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-20 06:33:11,911 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-20 06:33:11,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 91 treesize of output 91 [2021-11-20 06:33:13,170 INFO L354 Elim1Store]: treesize reduction 208, result has 1.4 percent of original size [2021-11-20 06:33:13,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 54 [2021-11-20 06:33:13,217 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 34 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:13,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:13,873 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 33 treesize of output 31 [2021-11-20 06:33:13,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 190 [2021-11-20 06:33:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 24 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:13,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812598070] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:33:13,942 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:33:13,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 23, 16] total 41 [2021-11-20 06:33:13,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105654249] [2021-11-20 06:33:13,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:33:13,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-20 06:33:13,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:33:13,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-20 06:33:13,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=1297, Unknown=0, NotChecked=0, Total=1640 [2021-11-20 06:33:13,946 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 41 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 41 states have internal predecessors, (107), 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) [2021-11-20 06:33:15,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:15,712 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2021-11-20 06:33:15,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-20 06:33:15,714 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 41 states have internal predecessors, (107), 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 44 [2021-11-20 06:33:15,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:15,715 INFO L225 Difference]: With dead ends: 89 [2021-11-20 06:33:15,715 INFO L226 Difference]: Without dead ends: 87 [2021-11-20 06:33:15,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 52 SyntacticMatches, 20 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1732 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1059, Invalid=4053, Unknown=0, NotChecked=0, Total=5112 [2021-11-20 06:33:15,718 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 61 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:15,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 99 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 299 Invalid, 0 Unknown, 50 Unchecked, 0.5s Time] [2021-11-20 06:33:15,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-20 06:33:15,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 49. [2021-11-20 06:33:15,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 48 states have internal predecessors, (52), 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) [2021-11-20 06:33:15,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2021-11-20 06:33:15,730 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 44 [2021-11-20 06:33:15,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:15,730 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2021-11-20 06:33:15,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 41 states have internal predecessors, (107), 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) [2021-11-20 06:33:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2021-11-20 06:33:15,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 06:33:15,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:15,732 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:15,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:15,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 06:33:15,947 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:15,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:15,947 INFO L85 PathProgramCache]: Analyzing trace with hash 924773190, now seen corresponding path program 7 times [2021-11-20 06:33:15,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:15,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362734204] [2021-11-20 06:33:15,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:15,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:16,070 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 33 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:16,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:33:16,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362734204] [2021-11-20 06:33:16,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362734204] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:16,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747534144] [2021-11-20 06:33:16,070 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-20 06:33:16,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:16,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:16,080 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:33:16,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 06:33:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:16,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-20 06:33:16,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 50 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:16,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 63 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:16,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747534144] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:33:16,671 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:33:16,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 21 [2021-11-20 06:33:16,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947925664] [2021-11-20 06:33:16,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:33:16,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-20 06:33:16,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:33:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-20 06:33:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=251, Unknown=0, NotChecked=0, Total=420 [2021-11-20 06:33:16,677 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 21 states, 21 states have (on average 4.476190476190476) internal successors, (94), 21 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:33:16,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:16,859 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2021-11-20 06:33:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 06:33:16,859 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.476190476190476) internal successors, (94), 21 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-20 06:33:16,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:16,862 INFO L225 Difference]: With dead ends: 95 [2021-11-20 06:33:16,862 INFO L226 Difference]: Without dead ends: 55 [2021-11-20 06:33:16,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=201, Invalid=305, Unknown=0, NotChecked=0, Total=506 [2021-11-20 06:33:16,864 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 46 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:16,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 57 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:33:16,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-20 06:33:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2021-11-20 06:33:16,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:33:16,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2021-11-20 06:33:16,884 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 48 [2021-11-20 06:33:16,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:16,885 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2021-11-20 06:33:16,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.476190476190476) internal successors, (94), 21 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:33:16,885 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2021-11-20 06:33:16,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 06:33:16,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:16,888 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:16,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:17,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:17,103 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:17,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:17,103 INFO L85 PathProgramCache]: Analyzing trace with hash 778339585, now seen corresponding path program 8 times [2021-11-20 06:33:17,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:17,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272887687] [2021-11-20 06:33:17,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:17,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:17,655 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:17,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:33:17,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272887687] [2021-11-20 06:33:17,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272887687] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:17,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702249315] [2021-11-20 06:33:17,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:33:17,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:17,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:17,662 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:33:17,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 06:33:17,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:33:17,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:17,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-20 06:33:17,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:17,787 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 15 treesize of output 11 [2021-11-20 06:33:17,875 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-20 06:33:17,876 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 33 treesize of output 32 [2021-11-20 06:33:17,948 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-20 06:33:17,948 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 44 treesize of output 46 [2021-11-20 06:33:18,120 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-20 06:33:18,121 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 60 treesize of output 65 [2021-11-20 06:33:18,236 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-20 06:33:18,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-20 06:33:18,442 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-20 06:33:18,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-20 06:33:18,567 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-20 06:33:18,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-20 06:33:18,784 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-20 06:33:18,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-20 06:33:18,941 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-20 06:33:18,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-20 06:33:19,459 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-20 06:33:19,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 105 treesize of output 108 [2021-11-20 06:33:21,285 INFO L354 Elim1Store]: treesize reduction 310, result has 1.0 percent of original size [2021-11-20 06:33:21,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 112 treesize of output 63 [2021-11-20 06:33:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 52 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:21,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:22,283 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 33 treesize of output 31 [2021-11-20 06:33:22,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 190 [2021-11-20 06:33:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 30 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:22,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702249315] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:33:22,337 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:33:22,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 27, 18] total 47 [2021-11-20 06:33:22,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89224217] [2021-11-20 06:33:22,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:33:22,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-20 06:33:22,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:33:22,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-20 06:33:22,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=442, Invalid=1720, Unknown=0, NotChecked=0, Total=2162 [2021-11-20 06:33:22,343 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 47 states, 47 states have (on average 2.702127659574468) internal successors, (127), 47 states have internal predecessors, (127), 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) [2021-11-20 06:33:24,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:24,476 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions. [2021-11-20 06:33:24,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 06:33:24,476 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.702127659574468) internal successors, (127), 47 states have internal predecessors, (127), 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 52 [2021-11-20 06:33:24,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:24,477 INFO L225 Difference]: With dead ends: 105 [2021-11-20 06:33:24,477 INFO L226 Difference]: Without dead ends: 103 [2021-11-20 06:33:24,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 63 SyntacticMatches, 26 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2441 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1379, Invalid=5427, Unknown=0, NotChecked=0, Total=6806 [2021-11-20 06:33:24,480 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 68 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:24,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 142 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 365 Invalid, 0 Unknown, 76 Unchecked, 0.5s Time] [2021-11-20 06:33:24,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-20 06:33:24,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 57. [2021-11-20 06:33:24,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0535714285714286) internal successors, (59), 56 states have internal predecessors, (59), 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) [2021-11-20 06:33:24,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2021-11-20 06:33:24,494 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 52 [2021-11-20 06:33:24,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:24,494 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2021-11-20 06:33:24,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.702127659574468) internal successors, (127), 47 states have internal predecessors, (127), 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) [2021-11-20 06:33:24,495 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2021-11-20 06:33:24,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 06:33:24,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:24,496 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:24,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:24,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:24,722 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:24,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:24,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1215546761, now seen corresponding path program 9 times [2021-11-20 06:33:24,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:24,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265630649] [2021-11-20 06:33:24,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:24,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:24,871 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 51 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:24,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:33:24,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265630649] [2021-11-20 06:33:24,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265630649] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:24,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126973115] [2021-11-20 06:33:24,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 06:33:24,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:24,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:24,874 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:33:24,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 06:33:25,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-20 06:33:25,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:25,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-20 06:33:25,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 72 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:25,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 88 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:25,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126973115] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:33:25,611 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:33:25,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 16] total 24 [2021-11-20 06:33:25,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779360708] [2021-11-20 06:33:25,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:33:25,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-20 06:33:25,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:33:25,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-20 06:33:25,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=331, Unknown=0, NotChecked=0, Total=552 [2021-11-20 06:33:25,612 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 24 states have internal predecessors, (110), 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) [2021-11-20 06:33:25,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:25,792 INFO L93 Difference]: Finished difference Result 104 states and 109 transitions. [2021-11-20 06:33:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 06:33:25,792 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 24 states have internal predecessors, (110), 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 56 [2021-11-20 06:33:25,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:25,793 INFO L225 Difference]: With dead ends: 104 [2021-11-20 06:33:25,793 INFO L226 Difference]: Without dead ends: 63 [2021-11-20 06:33:25,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=239, Invalid=361, Unknown=0, NotChecked=0, Total=600 [2021-11-20 06:33:25,795 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 53 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:25,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 74 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:33:25,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-20 06:33:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2021-11-20 06:33:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.05) internal successors, (63), 60 states have internal predecessors, (63), 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) [2021-11-20 06:33:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2021-11-20 06:33:25,808 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 56 [2021-11-20 06:33:25,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:25,809 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2021-11-20 06:33:25,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 24 states have internal predecessors, (110), 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) [2021-11-20 06:33:25,809 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2021-11-20 06:33:25,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-20 06:33:25,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:25,811 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:25,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:26,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-20 06:33:26,018 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:26,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:26,019 INFO L85 PathProgramCache]: Analyzing trace with hash -836376270, now seen corresponding path program 10 times [2021-11-20 06:33:26,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:26,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448342916] [2021-11-20 06:33:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:26,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:26,978 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 29 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:26,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:33:26,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448342916] [2021-11-20 06:33:26,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448342916] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:26,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648631026] [2021-11-20 06:33:26,979 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 06:33:26,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:26,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:26,980 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:33:26,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 06:33:27,034 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 06:33:27,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:27,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-20 06:33:27,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:27,064 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 15 treesize of output 11 [2021-11-20 06:33:27,128 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-20 06:33:27,128 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 33 treesize of output 32 [2021-11-20 06:33:27,190 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-20 06:33:27,190 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 44 treesize of output 46 [2021-11-20 06:33:27,342 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-20 06:33:27,342 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 60 treesize of output 65 [2021-11-20 06:33:27,454 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-20 06:33:27,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-20 06:33:27,646 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-20 06:33:27,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-20 06:33:27,770 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-20 06:33:27,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-20 06:33:28,002 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-20 06:33:28,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-20 06:33:28,160 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-20 06:33:28,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-20 06:33:28,454 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-20 06:33:28,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-20 06:33:28,641 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-20 06:33:28,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-20 06:33:29,225 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-20 06:33:29,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 119 treesize of output 125 [2021-11-20 06:33:31,511 INFO L354 Elim1Store]: treesize reduction 404, result has 0.7 percent of original size [2021-11-20 06:33:31,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 119 treesize of output 64 [2021-11-20 06:33:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 74 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:31,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:32,903 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 33 treesize of output 31 [2021-11-20 06:33:32,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 88 [2021-11-20 06:33:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 36 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:32,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648631026] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:33:32,921 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:33:32,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 31, 20] total 64 [2021-11-20 06:33:32,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217925933] [2021-11-20 06:33:32,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:33:32,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-20 06:33:32,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:33:32,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-20 06:33:32,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=815, Invalid=3217, Unknown=0, NotChecked=0, Total=4032 [2021-11-20 06:33:32,926 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 64 states, 64 states have (on average 2.640625) internal successors, (169), 64 states have internal predecessors, (169), 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) [2021-11-20 06:33:35,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:35,975 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2021-11-20 06:33:35,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-20 06:33:35,976 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 2.640625) internal successors, (169), 64 states have internal predecessors, (169), 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 60 [2021-11-20 06:33:35,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:35,978 INFO L225 Difference]: With dead ends: 123 [2021-11-20 06:33:35,978 INFO L226 Difference]: Without dead ends: 121 [2021-11-20 06:33:35,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 72 SyntacticMatches, 22 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4161 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2312, Invalid=9030, Unknown=0, NotChecked=0, Total=11342 [2021-11-20 06:33:35,984 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 84 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:35,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 222 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 556 Invalid, 0 Unknown, 55 Unchecked, 0.7s Time] [2021-11-20 06:33:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-20 06:33:35,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 65. [2021-11-20 06:33:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 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) [2021-11-20 06:33:35,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2021-11-20 06:33:36,000 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 60 [2021-11-20 06:33:36,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:36,000 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2021-11-20 06:33:36,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 2.640625) internal successors, (169), 64 states have internal predecessors, (169), 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) [2021-11-20 06:33:36,001 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2021-11-20 06:33:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 06:33:36,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:36,003 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:36,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:36,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:36,226 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:36,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:36,227 INFO L85 PathProgramCache]: Analyzing trace with hash 313400872, now seen corresponding path program 11 times [2021-11-20 06:33:36,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:36,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452364317] [2021-11-20 06:33:36,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:36,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 73 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:36,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:33:36,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452364317] [2021-11-20 06:33:36,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452364317] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:36,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498074186] [2021-11-20 06:33:36,393 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 06:33:36,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:36,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:36,394 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:33:36,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 06:33:36,644 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-11-20 06:33:36,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:36,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-20 06:33:36,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 98 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:37,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:37,352 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 117 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:37,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498074186] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:33:37,352 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:33:37,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 18] total 27 [2021-11-20 06:33:37,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867550773] [2021-11-20 06:33:37,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:33:37,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-20 06:33:37,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:33:37,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-20 06:33:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=422, Unknown=0, NotChecked=0, Total=702 [2021-11-20 06:33:37,354 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand has 27 states, 27 states have (on average 4.666666666666667) internal successors, (126), 27 states have internal predecessors, (126), 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) [2021-11-20 06:33:37,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:37,524 INFO L93 Difference]: Finished difference Result 116 states and 121 transitions. [2021-11-20 06:33:37,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 06:33:37,524 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.666666666666667) internal successors, (126), 27 states have internal predecessors, (126), 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 64 [2021-11-20 06:33:37,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:37,525 INFO L225 Difference]: With dead ends: 116 [2021-11-20 06:33:37,525 INFO L226 Difference]: Without dead ends: 71 [2021-11-20 06:33:37,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=456, Unknown=0, NotChecked=0, Total=756 [2021-11-20 06:33:37,527 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 56 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:37,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 90 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:33:37,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-20 06:33:37,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2021-11-20 06:33:37,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.0441176470588236) internal successors, (71), 68 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) [2021-11-20 06:33:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2021-11-20 06:33:37,538 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 64 [2021-11-20 06:33:37,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:37,539 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2021-11-20 06:33:37,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.666666666666667) internal successors, (126), 27 states have internal predecessors, (126), 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) [2021-11-20 06:33:37,539 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2021-11-20 06:33:37,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 06:33:37,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:37,540 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:37,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:37,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-20 06:33:37,742 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:37,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:37,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1370939875, now seen corresponding path program 12 times [2021-11-20 06:33:37,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:37,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864960000] [2021-11-20 06:33:37,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:37,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:38,355 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 22 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:38,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:33:38,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864960000] [2021-11-20 06:33:38,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864960000] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:38,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644850542] [2021-11-20 06:33:38,356 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-20 06:33:38,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:38,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:38,358 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:33:38,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-20 06:33:38,576 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-11-20 06:33:38,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:38,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-20 06:33:38,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:38,621 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 15 treesize of output 11 [2021-11-20 06:33:38,692 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-20 06:33:38,693 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 33 treesize of output 32 [2021-11-20 06:33:38,755 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-20 06:33:38,756 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 44 treesize of output 46 [2021-11-20 06:33:38,884 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-20 06:33:38,884 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 60 treesize of output 65 [2021-11-20 06:33:38,974 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-20 06:33:38,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-20 06:33:39,158 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-20 06:33:39,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-20 06:33:39,285 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-20 06:33:39,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-20 06:33:39,510 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-20 06:33:39,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-20 06:33:39,674 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-20 06:33:39,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-20 06:33:39,960 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-20 06:33:39,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-20 06:33:40,149 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-20 06:33:40,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-20 06:33:40,489 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-20 06:33:40,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-20 06:33:40,755 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-20 06:33:40,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-20 06:33:41,398 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-20 06:33:41,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 133 treesize of output 142 [2021-11-20 06:33:43,983 INFO L354 Elim1Store]: treesize reduction 526, result has 0.6 percent of original size [2021-11-20 06:33:43,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 132 treesize of output 69 [2021-11-20 06:33:44,048 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 100 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:44,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:45,371 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 33 treesize of output 31 [2021-11-20 06:33:45,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 88 [2021-11-20 06:33:45,389 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 42 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:45,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644850542] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:33:45,390 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:33:45,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 35, 22] total 59 [2021-11-20 06:33:45,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887710595] [2021-11-20 06:33:45,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:33:45,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-20 06:33:45,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:33:45,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-20 06:33:45,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=679, Invalid=2743, Unknown=0, NotChecked=0, Total=3422 [2021-11-20 06:33:45,393 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand has 59 states, 59 states have (on average 2.830508474576271) internal successors, (167), 59 states have internal predecessors, (167), 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) [2021-11-20 06:33:51,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:51,065 INFO L93 Difference]: Finished difference Result 143 states and 154 transitions. [2021-11-20 06:33:51,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-20 06:33:51,066 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.830508474576271) internal successors, (167), 59 states have internal predecessors, (167), 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 68 [2021-11-20 06:33:51,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:51,067 INFO L225 Difference]: With dead ends: 143 [2021-11-20 06:33:51,068 INFO L226 Difference]: Without dead ends: 141 [2021-11-20 06:33:51,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 80 SyntacticMatches, 38 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4785 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=2406, Invalid=10250, Unknown=0, NotChecked=0, Total=12656 [2021-11-20 06:33:51,073 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 85 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 122 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:51,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 283 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 707 Invalid, 0 Unknown, 122 Unchecked, 1.0s Time] [2021-11-20 06:33:51,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-20 06:33:51,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 73. [2021-11-20 06:33:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.0416666666666667) internal successors, (75), 72 states have internal predecessors, (75), 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) [2021-11-20 06:33:51,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2021-11-20 06:33:51,090 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 68 [2021-11-20 06:33:51,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:51,090 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2021-11-20 06:33:51,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.830508474576271) internal successors, (167), 59 states have internal predecessors, (167), 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) [2021-11-20 06:33:51,091 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2021-11-20 06:33:51,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-20 06:33:51,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:51,093 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:51,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:51,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-20 06:33:51,307 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:51,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:51,307 INFO L85 PathProgramCache]: Analyzing trace with hash -20883879, now seen corresponding path program 13 times [2021-11-20 06:33:51,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:51,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151240843] [2021-11-20 06:33:51,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:51,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:51,474 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 99 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:51,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:33:51,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151240843] [2021-11-20 06:33:51,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151240843] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:51,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141384563] [2021-11-20 06:33:51,475 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-20 06:33:51,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:51,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:51,477 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:33:51,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-20 06:33:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:51,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-20 06:33:51,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 128 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:51,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 150 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:52,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141384563] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:33:52,258 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:33:52,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 20, 20] total 30 [2021-11-20 06:33:52,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434420414] [2021-11-20 06:33:52,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:33:52,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-20 06:33:52,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:33:52,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-20 06:33:52,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=346, Invalid=524, Unknown=0, NotChecked=0, Total=870 [2021-11-20 06:33:52,260 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 30 states, 30 states have (on average 4.733333333333333) internal successors, (142), 30 states have internal predecessors, (142), 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) [2021-11-20 06:33:52,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:52,427 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2021-11-20 06:33:52,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 06:33:52,427 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.733333333333333) internal successors, (142), 30 states have internal predecessors, (142), 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 72 [2021-11-20 06:33:52,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:52,429 INFO L225 Difference]: With dead ends: 128 [2021-11-20 06:33:52,429 INFO L226 Difference]: Without dead ends: 79 [2021-11-20 06:33:52,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=368, Invalid=562, Unknown=0, NotChecked=0, Total=930 [2021-11-20 06:33:52,431 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 65 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:52,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 84 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:33:52,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-20 06:33:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2021-11-20 06:33:52,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.0394736842105263) internal successors, (79), 76 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:33:52,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2021-11-20 06:33:52,448 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 72 [2021-11-20 06:33:52,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:52,449 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2021-11-20 06:33:52,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.733333333333333) internal successors, (142), 30 states have internal predecessors, (142), 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) [2021-11-20 06:33:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2021-11-20 06:33:52,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-20 06:33:52,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:52,451 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:52,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:52,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-20 06:33:52,666 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:52,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:52,666 INFO L85 PathProgramCache]: Analyzing trace with hash 609496852, now seen corresponding path program 14 times [2021-11-20 06:33:52,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:52,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287130237] [2021-11-20 06:33:52,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:52,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:53,330 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 25 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:53,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:33:53,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287130237] [2021-11-20 06:33:53,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287130237] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:53,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184765723] [2021-11-20 06:33:53,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:33:53,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:33:53,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:53,332 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:33:53,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-20 06:33:53,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:33:53,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:53,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-20 06:33:53,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:53,431 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 15 treesize of output 11 [2021-11-20 06:33:53,507 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-20 06:33:53,508 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 33 treesize of output 32 [2021-11-20 06:33:53,569 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-20 06:33:53,569 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 44 treesize of output 46 [2021-11-20 06:33:53,711 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-20 06:33:53,711 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 60 treesize of output 65 [2021-11-20 06:33:53,804 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-20 06:33:53,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-20 06:33:53,991 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-20 06:33:53,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-20 06:33:54,116 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-20 06:33:54,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-20 06:33:54,349 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-20 06:33:54,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-20 06:33:54,514 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-20 06:33:54,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-20 06:33:54,807 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-20 06:33:54,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-20 06:33:55,009 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-20 06:33:55,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-20 06:33:55,387 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-20 06:33:55,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-20 06:33:55,675 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-20 06:33:55,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-20 06:33:56,232 INFO L354 Elim1Store]: treesize reduction 838, result has 10.3 percent of original size [2021-11-20 06:33:56,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 150 [2021-11-20 06:33:56,522 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-20 06:33:56,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 141 treesize of output 153 [2021-11-20 06:33:57,335 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-20 06:33:57,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 147 treesize of output 159 [2021-11-20 06:34:00,950 INFO L354 Elim1Store]: treesize reduction 664, result has 0.4 percent of original size [2021-11-20 06:34:00,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 145 treesize of output 74 [2021-11-20 06:34:01,018 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 130 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:01,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:34:02,589 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 33 treesize of output 31 [2021-11-20 06:34:02,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 88 [2021-11-20 06:34:02,606 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 48 proven. 233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:02,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184765723] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:34:02,607 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:34:02,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 39, 24] total 65 [2021-11-20 06:34:02,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101705448] [2021-11-20 06:34:02,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:34:02,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-20 06:34:02,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:34:02,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-20 06:34:02,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=817, Invalid=3343, Unknown=0, NotChecked=0, Total=4160 [2021-11-20 06:34:02,610 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand has 65 states, 65 states have (on average 2.876923076923077) internal successors, (187), 65 states have internal predecessors, (187), 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) [2021-11-20 06:34:08,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:34:08,586 INFO L93 Difference]: Finished difference Result 155 states and 165 transitions. [2021-11-20 06:34:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-20 06:34:08,587 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.876923076923077) internal successors, (187), 65 states have internal predecessors, (187), 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 76 [2021-11-20 06:34:08,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:34:08,588 INFO L225 Difference]: With dead ends: 155 [2021-11-20 06:34:08,589 INFO L226 Difference]: Without dead ends: 153 [2021-11-20 06:34:08,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 90 SyntacticMatches, 44 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5638 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=2747, Invalid=11773, Unknown=0, NotChecked=0, Total=14520 [2021-11-20 06:34:08,592 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 132 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 116 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:34:08,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 284 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 613 Invalid, 0 Unknown, 116 Unchecked, 0.9s Time] [2021-11-20 06:34:08,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-20 06:34:08,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 81. [2021-11-20 06:34:08,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.0375) internal successors, (83), 80 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:34:08,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 83 transitions. [2021-11-20 06:34:08,608 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 83 transitions. Word has length 76 [2021-11-20 06:34:08,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:34:08,608 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 83 transitions. [2021-11-20 06:34:08,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.876923076923077) internal successors, (187), 65 states have internal predecessors, (187), 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) [2021-11-20 06:34:08,608 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2021-11-20 06:34:08,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-20 06:34:08,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:34:08,609 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:34:08,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-20 06:34:08,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-20 06:34:08,810 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:34:08,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:34:08,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2057478922, now seen corresponding path program 15 times [2021-11-20 06:34:08,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:34:08,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850437403] [2021-11-20 06:34:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:34:08,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:34:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:34:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 129 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:08,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:34:08,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850437403] [2021-11-20 06:34:08,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850437403] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:34:08,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957172717] [2021-11-20 06:34:08,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 06:34:08,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:34:08,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:34:08,959 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:34:08,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-20 06:34:09,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-20 06:34:09,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:34:09,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-20 06:34:09,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:34:09,724 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 162 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:09,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:34:10,127 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 187 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:10,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957172717] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:34:10,128 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:34:10,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 22, 22] total 33 [2021-11-20 06:34:10,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021071087] [2021-11-20 06:34:10,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:34:10,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-20 06:34:10,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:34:10,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-20 06:34:10,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=637, Unknown=0, NotChecked=0, Total=1056 [2021-11-20 06:34:10,130 INFO L87 Difference]: Start difference. First operand 81 states and 83 transitions. Second operand has 33 states, 33 states have (on average 4.787878787878788) internal successors, (158), 33 states have internal predecessors, (158), 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) [2021-11-20 06:34:10,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:34:10,340 INFO L93 Difference]: Finished difference Result 140 states and 145 transitions. [2021-11-20 06:34:10,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-20 06:34:10,340 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.787878787878788) internal successors, (158), 33 states have internal predecessors, (158), 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 80 [2021-11-20 06:34:10,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:34:10,341 INFO L225 Difference]: With dead ends: 140 [2021-11-20 06:34:10,341 INFO L226 Difference]: Without dead ends: 87 [2021-11-20 06:34:10,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=443, Invalid=679, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 06:34:10,342 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 55 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:34:10,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 114 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:34:10,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-20 06:34:10,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2021-11-20 06:34:10,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.0357142857142858) internal successors, (87), 84 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) [2021-11-20 06:34:10,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2021-11-20 06:34:10,358 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 80 [2021-11-20 06:34:10,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:34:10,358 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2021-11-20 06:34:10,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.787878787878788) internal successors, (158), 33 states have internal predecessors, (158), 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) [2021-11-20 06:34:10,359 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2021-11-20 06:34:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 06:34:10,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:34:10,360 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:34:10,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-20 06:34:10,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:34:10,566 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:34:10,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:34:10,567 INFO L85 PathProgramCache]: Analyzing trace with hash -103116603, now seen corresponding path program 16 times [2021-11-20 06:34:10,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:34:10,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573700305] [2021-11-20 06:34:10,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:34:10,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:34:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:34:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 28 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:11,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:34:11,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573700305] [2021-11-20 06:34:11,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573700305] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:34:11,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821544083] [2021-11-20 06:34:11,356 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 06:34:11,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:34:11,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:34:11,357 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:34:11,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-20 06:34:11,429 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 06:34:11,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:34:11,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-20 06:34:11,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:34:11,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 06:34:11,550 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-20 06:34:11,551 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 33 treesize of output 32 [2021-11-20 06:34:11,610 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-20 06:34:11,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-11-20 06:34:11,810 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-20 06:34:11,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-11-20 06:34:11,924 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-20 06:34:11,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-20 06:34:12,113 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-20 06:34:12,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-20 06:34:12,243 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-20 06:34:12,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-20 06:34:12,487 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-20 06:34:12,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-20 06:34:12,683 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-20 06:34:12,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-20 06:34:13,086 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-20 06:34:13,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-20 06:34:13,387 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-20 06:34:13,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-20 06:34:13,742 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-20 06:34:13,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-20 06:34:13,987 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-20 06:34:13,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-20 06:34:14,429 INFO L354 Elim1Store]: treesize reduction 838, result has 10.3 percent of original size [2021-11-20 06:34:14,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 150 [2021-11-20 06:34:14,730 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-20 06:34:14,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 141 treesize of output 153 [2021-11-20 06:34:15,262 INFO L354 Elim1Store]: treesize reduction 1024, result has 9.5 percent of original size [2021-11-20 06:34:15,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 144 treesize of output 167 [2021-11-20 06:34:15,647 INFO L354 Elim1Store]: treesize reduction 1152, result has 8.6 percent of original size [2021-11-20 06:34:15,648 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 54 case distinctions, treesize of input 155 treesize of output 170 [2021-11-20 06:34:16,597 INFO L354 Elim1Store]: treesize reduction 1152, result has 8.6 percent of original size [2021-11-20 06:34:16,597 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 54 case distinctions, treesize of input 161 treesize of output 176 [2021-11-20 06:34:21,025 INFO L354 Elim1Store]: treesize reduction 818, result has 0.4 percent of original size [2021-11-20 06:34:21,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 158 treesize of output 79 [2021-11-20 06:34:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 164 proven. 188 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:21,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:34:23,051 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 33 treesize of output 31 [2021-11-20 06:34:23,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 190 [2021-11-20 06:34:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 54 proven. 298 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:23,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821544083] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:34:23,124 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:34:23,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 43, 26] total 71 [2021-11-20 06:34:23,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959022669] [2021-11-20 06:34:23,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:34:23,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2021-11-20 06:34:23,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:34:23,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-11-20 06:34:23,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=968, Invalid=4002, Unknown=0, NotChecked=0, Total=4970 [2021-11-20 06:34:23,128 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand has 71 states, 71 states have (on average 2.915492957746479) internal successors, (207), 71 states have internal predecessors, (207), 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) [2021-11-20 06:34:45,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:34:45,007 INFO L93 Difference]: Finished difference Result 252 states and 283 transitions. [2021-11-20 06:34:45,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2021-11-20 06:34:45,008 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 2.915492957746479) internal successors, (207), 71 states have internal predecessors, (207), 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 84 [2021-11-20 06:34:45,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:34:45,009 INFO L225 Difference]: With dead ends: 252 [2021-11-20 06:34:45,010 INFO L226 Difference]: Without dead ends: 250 [2021-11-20 06:34:45,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 114 SyntacticMatches, 51 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16033 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=6500, Invalid=34506, Unknown=0, NotChecked=0, Total=41006 [2021-11-20 06:34:45,015 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 162 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 144 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:34:45,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 386 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1091 Invalid, 0 Unknown, 144 Unchecked, 2.1s Time] [2021-11-20 06:34:45,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-20 06:34:45,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 89. [2021-11-20 06:34:45,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.0340909090909092) internal successors, (91), 88 states have internal predecessors, (91), 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) [2021-11-20 06:34:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 91 transitions. [2021-11-20 06:34:45,037 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 91 transitions. Word has length 84 [2021-11-20 06:34:45,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:34:45,037 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 91 transitions. [2021-11-20 06:34:45,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 2.915492957746479) internal successors, (207), 71 states have internal predecessors, (207), 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) [2021-11-20 06:34:45,037 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 91 transitions. [2021-11-20 06:34:45,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-20 06:34:45,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:34:45,038 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:34:45,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-20 06:34:45,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:34:45,258 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:34:45,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:34:45,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2110702651, now seen corresponding path program 17 times [2021-11-20 06:34:45,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:34:45,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452292122] [2021-11-20 06:34:45,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:34:45,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:34:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:34:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 163 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:45,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:34:45,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452292122] [2021-11-20 06:34:45,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452292122] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:34:45,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77446611] [2021-11-20 06:34:45,457 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 06:34:45,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:34:45,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:34:45,459 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:34:45,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-20 06:34:45,898 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-11-20 06:34:45,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:34:45,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-20 06:34:45,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:34:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 200 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:46,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:34:46,994 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 228 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:46,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77446611] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:34:46,995 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:34:46,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 24, 24] total 36 [2021-11-20 06:34:46,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045718382] [2021-11-20 06:34:46,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:34:46,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-20 06:34:46,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:34:46,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-20 06:34:46,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=499, Invalid=761, Unknown=0, NotChecked=0, Total=1260 [2021-11-20 06:34:46,997 INFO L87 Difference]: Start difference. First operand 89 states and 91 transitions. Second operand has 36 states, 36 states have (on average 4.833333333333333) internal successors, (174), 36 states have internal predecessors, (174), 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) [2021-11-20 06:34:47,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:34:47,255 INFO L93 Difference]: Finished difference Result 152 states and 157 transitions. [2021-11-20 06:34:47,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 06:34:47,256 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.833333333333333) internal successors, (174), 36 states have internal predecessors, (174), 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 88 [2021-11-20 06:34:47,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:34:47,257 INFO L225 Difference]: With dead ends: 152 [2021-11-20 06:34:47,257 INFO L226 Difference]: Without dead ends: 95 [2021-11-20 06:34:47,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=525, Invalid=807, Unknown=0, NotChecked=0, Total=1332 [2021-11-20 06:34:47,258 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 61 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:34:47,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 136 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:34:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-20 06:34:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2021-11-20 06:34:47,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.0326086956521738) internal successors, (95), 92 states have internal predecessors, (95), 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) [2021-11-20 06:34:47,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 95 transitions. [2021-11-20 06:34:47,281 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 95 transitions. Word has length 88 [2021-11-20 06:34:47,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:34:47,282 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 95 transitions. [2021-11-20 06:34:47,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.833333333333333) internal successors, (174), 36 states have internal predecessors, (174), 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) [2021-11-20 06:34:47,282 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 95 transitions. [2021-11-20 06:34:47,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-20 06:34:47,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:34:47,283 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:34:47,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-20 06:34:47,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-20 06:34:47,484 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:34:47,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:34:47,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2126956278, now seen corresponding path program 18 times [2021-11-20 06:34:47,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:34:47,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727515467] [2021-11-20 06:34:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:34:47,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:34:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:34:48,310 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 31 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:48,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:34:48,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727515467] [2021-11-20 06:34:48,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727515467] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:34:48,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118110634] [2021-11-20 06:34:48,311 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-20 06:34:48,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:34:48,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:34:48,313 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:34:48,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-20 06:34:48,950 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-11-20 06:34:48,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:34:48,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 68 conjunts are in the unsatisfiable core [2021-11-20 06:34:48,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:34:48,968 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 15 treesize of output 11 [2021-11-20 06:34:49,012 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-20 06:34:49,012 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 33 treesize of output 32 [2021-11-20 06:34:49,068 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-20 06:34:49,068 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 44 treesize of output 46 [2021-11-20 06:34:49,196 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-20 06:34:49,196 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 60 treesize of output 65 [2021-11-20 06:34:49,286 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-20 06:34:49,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-20 06:34:49,457 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-20 06:34:49,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-20 06:34:49,575 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-20 06:34:49,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-20 06:34:49,786 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-20 06:34:49,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-20 06:34:49,943 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-20 06:34:49,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-20 06:34:50,252 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-20 06:34:50,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-20 06:34:50,456 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-20 06:34:50,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-20 06:34:50,787 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-20 06:34:50,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-20 06:34:51,022 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-20 06:34:51,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-20 06:34:51,427 INFO L354 Elim1Store]: treesize reduction 838, result has 10.3 percent of original size [2021-11-20 06:34:51,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 150 [2021-11-20 06:34:51,734 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-20 06:34:51,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 141 treesize of output 153 [2021-11-20 06:34:52,276 INFO L354 Elim1Store]: treesize reduction 1024, result has 9.5 percent of original size [2021-11-20 06:34:52,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 144 treesize of output 167 [2021-11-20 06:34:52,640 INFO L354 Elim1Store]: treesize reduction 1152, result has 8.6 percent of original size [2021-11-20 06:34:52,640 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 54 case distinctions, treesize of input 155 treesize of output 170 [2021-11-20 06:34:53,248 INFO L354 Elim1Store]: treesize reduction 1228, result has 8.9 percent of original size [2021-11-20 06:34:53,249 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 158 treesize of output 184 [2021-11-20 06:34:53,792 INFO L354 Elim1Store]: treesize reduction 1370, result has 8.1 percent of original size [2021-11-20 06:34:53,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 169 treesize of output 187 [2021-11-20 06:34:54,815 INFO L354 Elim1Store]: treesize reduction 1370, result has 8.1 percent of original size [2021-11-20 06:34:54,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 175 treesize of output 193 [2021-11-20 06:34:59,746 INFO L354 Elim1Store]: treesize reduction 1142, result has 0.3 percent of original size [2021-11-20 06:34:59,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 185 treesize of output 84 [2021-11-20 06:34:59,825 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 202 proven. 229 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:34:59,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:35:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 60 proven. 371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:35:02,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118110634] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:35:02,018 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:35:02,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 46, 28] total 75 [2021-11-20 06:35:02,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080211355] [2021-11-20 06:35:02,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:35:02,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-11-20 06:35:02,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:02,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-11-20 06:35:02,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1062, Invalid=4488, Unknown=0, NotChecked=0, Total=5550 [2021-11-20 06:35:02,020 INFO L87 Difference]: Start difference. First operand 93 states and 95 transitions. Second operand has 75 states, 75 states have (on average 2.973333333333333) internal successors, (223), 75 states have internal predecessors, (223), 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) [2021-11-20 06:36:05,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:05,852 INFO L93 Difference]: Finished difference Result 603 states and 717 transitions. [2021-11-20 06:36:05,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 458 states. [2021-11-20 06:36:05,853 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.973333333333333) internal successors, (223), 75 states have internal predecessors, (223), 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 92 [2021-11-20 06:36:05,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:05,857 INFO L225 Difference]: With dead ends: 603 [2021-11-20 06:36:05,858 INFO L226 Difference]: Without dead ends: 601 [2021-11-20 06:36:05,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 173 SyntacticMatches, 56 SemanticMatches, 492 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105255 ImplicationChecksByTransitivity, 65.0s TimeCoverageRelationStatistics Valid=24794, Invalid=218748, Unknown=0, NotChecked=0, Total=243542 [2021-11-20 06:36:05,869 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 313 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 314 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:05,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 383 Invalid, 2204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1737 Invalid, 0 Unknown, 314 Unchecked, 4.5s Time] [2021-11-20 06:36:05,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-11-20 06:36:05,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 97. [2021-11-20 06:36:05,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.03125) internal successors, (99), 96 states have internal predecessors, (99), 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) [2021-11-20 06:36:05,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 99 transitions. [2021-11-20 06:36:05,897 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 99 transitions. Word has length 92 [2021-11-20 06:36:05,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:05,897 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 99 transitions. [2021-11-20 06:36:05,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.973333333333333) internal successors, (223), 75 states have internal predecessors, (223), 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) [2021-11-20 06:36:05,898 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 99 transitions. [2021-11-20 06:36:05,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-20 06:36:05,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:05,899 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:36:05,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-11-20 06:36:06,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-20 06:36:06,123 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:06,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:06,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1469941268, now seen corresponding path program 19 times [2021-11-20 06:36:06,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:06,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639694757] [2021-11-20 06:36:06,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:06,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:06,325 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 201 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:06,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:06,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639694757] [2021-11-20 06:36:06,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639694757] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:36:06,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104594948] [2021-11-20 06:36:06,326 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-20 06:36:06,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:06,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:36:06,327 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:36:06,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-20 06:36:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:06,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 06:36:06,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:36:07,053 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 242 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:07,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:36:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 273 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:07,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104594948] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:36:07,553 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:36:07,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 26, 26] total 39 [2021-11-20 06:36:07,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570314110] [2021-11-20 06:36:07,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:36:07,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-20 06:36:07,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:07,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-20 06:36:07,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=896, Unknown=0, NotChecked=0, Total=1482 [2021-11-20 06:36:07,555 INFO L87 Difference]: Start difference. First operand 97 states and 99 transitions. Second operand has 39 states, 39 states have (on average 4.871794871794871) internal successors, (190), 39 states have internal predecessors, (190), 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) [2021-11-20 06:36:07,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:07,790 INFO L93 Difference]: Finished difference Result 164 states and 169 transitions. [2021-11-20 06:36:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-20 06:36:07,791 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.871794871794871) internal successors, (190), 39 states have internal predecessors, (190), 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 96 [2021-11-20 06:36:07,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:07,792 INFO L225 Difference]: With dead ends: 164 [2021-11-20 06:36:07,792 INFO L226 Difference]: Without dead ends: 103 [2021-11-20 06:36:07,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=946, Unknown=0, NotChecked=0, Total=1560 [2021-11-20 06:36:07,793 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 67 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:07,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 144 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:36:07,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-20 06:36:07,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2021-11-20 06:36:07,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.03) internal successors, (103), 100 states have internal predecessors, (103), 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) [2021-11-20 06:36:07,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 103 transitions. [2021-11-20 06:36:07,816 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 103 transitions. Word has length 96 [2021-11-20 06:36:07,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:07,816 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 103 transitions. [2021-11-20 06:36:07,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.871794871794871) internal successors, (190), 39 states have internal predecessors, (190), 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) [2021-11-20 06:36:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 103 transitions. [2021-11-20 06:36:07,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 06:36:07,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:07,817 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:36:07,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-20 06:36:08,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:08,018 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:08,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:08,018 INFO L85 PathProgramCache]: Analyzing trace with hash 137728423, now seen corresponding path program 20 times [2021-11-20 06:36:08,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:08,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533473977] [2021-11-20 06:36:08,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:08,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:08,983 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 34 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:08,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:08,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533473977] [2021-11-20 06:36:08,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533473977] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:36:08,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104292457] [2021-11-20 06:36:08,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:36:08,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:08,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:36:08,987 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:36:08,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-20 06:36:09,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:36:09,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:36:09,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 76 conjunts are in the unsatisfiable core [2021-11-20 06:36:09,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:36:09,112 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 15 treesize of output 11 [2021-11-20 06:36:09,219 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-20 06:36:09,220 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 33 treesize of output 32 [2021-11-20 06:36:09,281 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-20 06:36:09,281 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 44 treesize of output 46 [2021-11-20 06:36:09,432 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-20 06:36:09,433 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 60 treesize of output 65 [2021-11-20 06:36:09,536 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-20 06:36:09,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-20 06:36:09,723 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-20 06:36:09,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-20 06:36:09,852 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-20 06:36:09,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-20 06:36:10,103 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-20 06:36:10,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-20 06:36:10,273 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-20 06:36:10,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-20 06:36:10,581 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-20 06:36:10,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-20 06:36:10,790 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-20 06:36:10,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-20 06:36:11,166 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-20 06:36:11,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-20 06:36:11,480 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-20 06:36:11,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-20 06:36:11,902 INFO L354 Elim1Store]: treesize reduction 838, result has 10.3 percent of original size [2021-11-20 06:36:11,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 150 [2021-11-20 06:36:12,196 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-20 06:36:12,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 141 treesize of output 153 [2021-11-20 06:36:12,689 INFO L354 Elim1Store]: treesize reduction 1024, result has 9.5 percent of original size [2021-11-20 06:36:12,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 144 treesize of output 167 [2021-11-20 06:36:13,048 INFO L354 Elim1Store]: treesize reduction 1152, result has 8.6 percent of original size [2021-11-20 06:36:13,048 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 54 case distinctions, treesize of input 155 treesize of output 170 [2021-11-20 06:36:13,639 INFO L354 Elim1Store]: treesize reduction 1228, result has 8.9 percent of original size [2021-11-20 06:36:13,640 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 158 treesize of output 184 [2021-11-20 06:36:14,152 INFO L354 Elim1Store]: treesize reduction 1370, result has 8.1 percent of original size [2021-11-20 06:36:14,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 169 treesize of output 187 [2021-11-20 06:36:14,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,672 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:36:14,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 172 treesize of output 201 [2021-11-20 06:36:14,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:36:14,994 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:36:14,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 183 treesize of output 204 [2021-11-20 06:36:16,343 INFO L354 Elim1Store]: treesize reduction 1654, result has 7.4 percent of original size [2021-11-20 06:36:16,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 192 treesize of output 212 [2021-11-20 06:36:26,683 INFO L354 Elim1Store]: treesize reduction 1150, result has 0.3 percent of original size [2021-11-20 06:36:26,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 185 treesize of output 92 [2021-11-20 06:36:26,759 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 224 proven. 294 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:26,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:36:29,210 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) is different from false [2021-11-20 06:36:31,954 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 55 treesize of output 53 [2021-11-20 06:36:31,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 405 treesize of output 401 [2021-11-20 06:36:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 65 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2021-11-20 06:36:31,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104292457] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:36:31,982 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:36:31,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 50, 32] total 84 [2021-11-20 06:36:31,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250878670] [2021-11-20 06:36:31,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:36:31,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2021-11-20 06:36:31,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:31,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-11-20 06:36:31,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1288, Invalid=5519, Unknown=3, NotChecked=162, Total=6972 [2021-11-20 06:36:31,988 INFO L87 Difference]: Start difference. First operand 101 states and 103 transitions. Second operand has 84 states, 84 states have (on average 2.9404761904761907) internal successors, (247), 84 states have internal predecessors, (247), 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) [2021-11-20 06:36:34,717 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 40 .cse1)) (+ |c_ULTIMATE.start_main_~i~0#1| 10)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4)) (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1))) (= |c_ULTIMATE.start_main_~i~0#1| (+ (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1)) 2)) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24)) (+ 6 |c_ULTIMATE.start_main_~i~0#1|)) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 32 .cse1)) (+ |c_ULTIMATE.start_main_~i~0#1| 8)) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1)) (+ |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1)) (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (= |c_ULTIMATE.start_main_~i~0#1| (+ (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) 1)) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 36 .cse1)) (+ 9 |c_ULTIMATE.start_main_~i~0#1|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (= (+ 7 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 28))))) is different from false [2021-11-20 06:36:49,642 WARN L227 SmtUtils]: Spent 10.62s on a formula simplification. DAG size of input: 168 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:36:51,806 WARN L838 $PredicateComparison]: unable to prove that (and (or (< |c_ULTIMATE.start_main_~i~0#1| 8) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 8 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0 (- 32)) (+ (- 9) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse0) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 9 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 36) .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 10))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 32)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 9)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse3) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse5) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse5) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse6) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse7) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 4)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse8) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6))) is different from false [2021-11-20 06:36:52,801 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (or (< |c_ULTIMATE.start_main_~i~0#1| 8) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 8 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0 (- 32)) (+ (- 9) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse0) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 9 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 36) .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 10))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 32)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 9)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse3) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse5) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse5) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7)) |c_ULTIMATE.start_main_~i~0#1|) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse8) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select (store .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse7) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 4))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse9 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse9 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse9) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6)))) is different from false [2021-11-20 06:37:06,690 WARN L227 SmtUtils]: Spent 13.34s on a formula simplification that was a NOOP. DAG size: 158 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:37:16,424 WARN L227 SmtUtils]: Spent 7.49s on a formula simplification. DAG size of input: 156 DAG size of output: 48 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:37:18,709 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse6 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse7) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (< |c_ULTIMATE.start_main_~i~0#1| 8) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 8 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0 (- 32)) (+ (- 9) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse0) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse5) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse7))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse8) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6))))) is different from false [2021-11-20 06:37:19,828 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse8 (store .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse6) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (< |c_ULTIMATE.start_main_~i~0#1| 8) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 8 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse0 (- 32)) (+ (- 9) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse0) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse1) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6)) |c_ULTIMATE.start_main_~i~0#1|) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse7) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse6))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse9 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse9 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse9) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6))))) is different from false [2021-11-20 06:37:30,123 WARN L227 SmtUtils]: Spent 9.68s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:37:43,399 WARN L227 SmtUtils]: Spent 11.13s on a formula simplification. DAG size of input: 146 DAG size of output: 55 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:37:45,885 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse5 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse6) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse6))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse7) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6)) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse6)))))) is different from false [2021-11-20 06:37:47,088 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse7 (store .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse5) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5)) |c_ULTIMATE.start_main_~i~0#1|) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 7 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 28) .cse6) (+ |c_ULTIMATE.start_main_~i~0#1| (- 8))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 (- 24)) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))))) (< |c_ULTIMATE.start_main_~i~0#1| 7)) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse5))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse8) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6)) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse5)))))) is different from false [2021-11-20 06:37:59,867 WARN L227 SmtUtils]: Spent 12.13s on a formula simplification that was a NOOP. DAG size: 138 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:38:10,957 WARN L227 SmtUtils]: Spent 9.03s on a formula simplification. DAG size of input: 136 DAG size of output: 60 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:38:13,312 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse4 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse5) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse5))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse5))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse6) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6)) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse5)))))) is different from false [2021-11-20 06:38:14,527 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse6 (store .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse5) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse0) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5)) |c_ULTIMATE.start_main_~i~0#1|) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse5))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse5))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 (- 24)) (+ (- 7) |c_ULTIMATE.start_main_~i~0#1|)) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse7) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 6 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 6)) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse5)))))) is different from false [2021-11-20 06:38:22,675 WARN L227 SmtUtils]: Spent 7.60s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:38:31,480 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse3) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse5) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse5) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-20 06:38:32,721 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 20) |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 6))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse2) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 5 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 5)) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse3) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse4 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse5) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse5) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~i~0#1|) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-20 06:38:49,473 WARN L227 SmtUtils]: Spent 10.97s on a formula simplification. DAG size of input: 116 DAG size of output: 71 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:38:51,446 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-20 06:38:52,436 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 4) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse4 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 16) .cse4) (+ |c_ULTIMATE.start_main_~i~0#1| (- 5))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse4) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|))) (< |c_ULTIMATE.start_main_~i~0#1| 4)) (= (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~i~0#1|) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-20 06:39:07,749 WARN L227 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 107 DAG size of output: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:39:10,016 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (<= (+ 7 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 28))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-20 06:39:11,236 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (or (< |c_ULTIMATE.start_main_~i~0#1| 3) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 12) .cse3) (+ |c_ULTIMATE.start_main_~i~0#1| (- 4))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 (- 8)) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ 3 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (= (select .cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~i~0#1|) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (<= (+ 7 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 28))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-20 06:39:21,428 WARN L227 SmtUtils]: Spent 6.95s on a formula simplification. DAG size of input: 98 DAG size of output: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:39:23,509 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ |c_ULTIMATE.start_main_~i~0#1| 8) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 32 .cse1))) (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (<= (+ 7 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 28))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (<= 11 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |c_ULTIMATE.start_main_~i~0#1|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-20 06:39:24,586 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (store .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse1) (+ (- 2) |c_ULTIMATE.start_main_~i~0#1|)))) (and (<= (+ |c_ULTIMATE.start_main_~i~0#1| 8) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 32 .cse1))) (<= (+ 5 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse1))) (or (< |c_ULTIMATE.start_main_~i~0#1| 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_546|) |c_ULTIMATE.start_main_~i~0#1|) (<= 11 (select (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 (- 8)) (+ (- 3) |c_ULTIMATE.start_main_~i~0#1|)) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 4) .cse2) (+ (- 1) |c_ULTIMATE.start_main_~i~0#1|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|)))) (= (select .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~i~0#1|) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 4) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse1))) (<= (+ 7 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 28))) (forall ((|v_ULTIMATE.start_main_~i~0#1_546| Int)) (or (<= 11 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_546| 4)) |v_ULTIMATE.start_main_~i~0#1_546|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 44))) (< (+ |v_ULTIMATE.start_main_~i~0#1_546| 1) |c_ULTIMATE.start_main_~i~0#1|) (<= 1 |v_ULTIMATE.start_main_~i~0#1_546|) (< |v_ULTIMATE.start_main_~i~0#1_546| 0))) (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4))) (<= (+ 6 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 24))) (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1))) (<= (+ 3 |c_ULTIMATE.start_main_~i~0#1|) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse1)))))) is different from false [2021-11-20 06:39:39,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:39:39,000 INFO L93 Difference]: Finished difference Result 233 states and 256 transitions. [2021-11-20 06:39:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-11-20 06:39:39,000 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 84 states have (on average 2.9404761904761907) internal successors, (247), 84 states have internal predecessors, (247), 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 100 [2021-11-20 06:39:39,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:39:39,002 INFO L225 Difference]: With dead ends: 233 [2021-11-20 06:39:39,002 INFO L226 Difference]: Without dead ends: 231 [2021-11-20 06:39:39,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 108 SyntacticMatches, 72 SemanticMatches, 185 ConstructedPredicates, 18 IntricatePredicates, 0 DeprecatedPredicates, 12759 ImplicationChecksByTransitivity, 195.5s TimeCoverageRelationStatistics Valid=5437, Invalid=23003, Unknown=24, NotChecked=6318, Total=34782 [2021-11-20 06:39:39,005 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 140 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 838 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:39:39,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 486 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 838 Invalid, 0 Unknown, 838 Unchecked, 1.7s Time] [2021-11-20 06:39:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-20 06:39:39,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 105. [2021-11-20 06:39:39,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.0288461538461537) internal successors, (107), 104 states have internal predecessors, (107), 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) [2021-11-20 06:39:39,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 107 transitions. [2021-11-20 06:39:39,032 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 107 transitions. Word has length 100 [2021-11-20 06:39:39,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:39:39,032 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 107 transitions. [2021-11-20 06:39:39,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.9404761904761907) internal successors, (247), 84 states have internal predecessors, (247), 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) [2021-11-20 06:39:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 107 transitions. [2021-11-20 06:39:39,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-20 06:39:39,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:39:39,033 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:39:39,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-20 06:39:39,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-20 06:39:39,234 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:39:39,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:39:39,235 INFO L85 PathProgramCache]: Analyzing trace with hash -216366051, now seen corresponding path program 21 times [2021-11-20 06:39:39,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:39:39,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522566698] [2021-11-20 06:39:39,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:39:39,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:39:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 243 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:39:39,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:39:39,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522566698] [2021-11-20 06:39:39,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522566698] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:39:39,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794342839] [2021-11-20 06:39:39,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 06:39:39,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:39:39,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:39:39,459 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:39:39,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-20 06:39:40,431 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2021-11-20 06:39:40,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:39:40,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-20 06:39:40,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:39:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 288 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:39:41,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:39:41,631 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 322 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:39:41,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794342839] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:39:41,631 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:39:41,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 28, 28] total 42 [2021-11-20 06:39:41,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472586179] [2021-11-20 06:39:41,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:39:41,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-20 06:39:41,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:39:41,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-20 06:39:41,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=680, Invalid=1042, Unknown=0, NotChecked=0, Total=1722 [2021-11-20 06:39:41,633 INFO L87 Difference]: Start difference. First operand 105 states and 107 transitions. Second operand has 42 states, 42 states have (on average 4.904761904761905) internal successors, (206), 42 states have internal predecessors, (206), 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) [2021-11-20 06:39:41,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:39:41,918 INFO L93 Difference]: Finished difference Result 176 states and 181 transitions. [2021-11-20 06:39:41,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-20 06:39:41,922 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 4.904761904761905) internal successors, (206), 42 states have internal predecessors, (206), 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 104 [2021-11-20 06:39:41,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:39:41,923 INFO L225 Difference]: With dead ends: 176 [2021-11-20 06:39:41,924 INFO L226 Difference]: Without dead ends: 111 [2021-11-20 06:39:41,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=710, Invalid=1096, Unknown=0, NotChecked=0, Total=1806 [2021-11-20 06:39:41,925 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 112 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:39:41,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 158 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:39:41,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-20 06:39:41,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2021-11-20 06:39:41,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.0277777777777777) internal successors, (111), 108 states have internal predecessors, (111), 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) [2021-11-20 06:39:41,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 111 transitions. [2021-11-20 06:39:41,957 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 111 transitions. Word has length 104 [2021-11-20 06:39:41,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:39:41,958 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 111 transitions. [2021-11-20 06:39:41,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.904761904761905) internal successors, (206), 42 states have internal predecessors, (206), 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) [2021-11-20 06:39:41,958 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 111 transitions. [2021-11-20 06:39:41,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 06:39:41,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:39:41,959 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:39:42,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-20 06:39:42,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-20 06:39:42,187 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:39:42,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:39:42,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1138995416, now seen corresponding path program 22 times [2021-11-20 06:39:42,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:39:42,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480904066] [2021-11-20 06:39:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:39:42,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:39:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:39:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 65 proven. 548 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:39:44,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:39:44,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480904066] [2021-11-20 06:39:44,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480904066] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:39:44,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921131923] [2021-11-20 06:39:44,907 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 06:39:44,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:39:44,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:39:44,908 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:39:44,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0f3498-608c-4b7d-8334-ffe146887cc8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-20 06:39:44,982 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 06:39:44,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:39:44,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 82 conjunts are in the unsatisfiable core [2021-11-20 06:39:44,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:39:45,003 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 15 treesize of output 11 [2021-11-20 06:39:45,100 INFO L354 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2021-11-20 06:39:45,101 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 33 treesize of output 32 [2021-11-20 06:39:45,179 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-20 06:39:45,179 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 44 treesize of output 46 [2021-11-20 06:39:45,346 INFO L354 Elim1Store]: treesize reduction 178, result has 16.8 percent of original size [2021-11-20 06:39:45,346 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 60 treesize of output 65 [2021-11-20 06:39:45,460 INFO L354 Elim1Store]: treesize reduction 222, result has 14.3 percent of original size [2021-11-20 06:39:45,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 68 [2021-11-20 06:39:45,680 INFO L354 Elim1Store]: treesize reduction 274, result has 14.9 percent of original size [2021-11-20 06:39:45,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 82 [2021-11-20 06:39:45,833 INFO L354 Elim1Store]: treesize reduction 332, result has 12.9 percent of original size [2021-11-20 06:39:45,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-11-20 06:39:46,112 INFO L354 Elim1Store]: treesize reduction 388, result has 13.4 percent of original size [2021-11-20 06:39:46,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 99 [2021-11-20 06:39:46,295 INFO L354 Elim1Store]: treesize reduction 460, result has 11.7 percent of original size [2021-11-20 06:39:46,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 99 treesize of output 102 [2021-11-20 06:39:46,658 INFO L354 Elim1Store]: treesize reduction 520, result has 12.2 percent of original size [2021-11-20 06:39:46,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 116 [2021-11-20 06:39:46,914 INFO L354 Elim1Store]: treesize reduction 606, result has 10.8 percent of original size [2021-11-20 06:39:46,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 119 [2021-11-20 06:39:47,309 INFO L354 Elim1Store]: treesize reduction 670, result has 11.1 percent of original size [2021-11-20 06:39:47,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 133 [2021-11-20 06:39:47,587 INFO L354 Elim1Store]: treesize reduction 770, result has 9.9 percent of original size [2021-11-20 06:39:47,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 127 treesize of output 136 [2021-11-20 06:39:48,060 INFO L354 Elim1Store]: treesize reduction 838, result has 10.3 percent of original size [2021-11-20 06:39:48,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 150 [2021-11-20 06:39:48,434 INFO L354 Elim1Store]: treesize reduction 952, result has 9.2 percent of original size [2021-11-20 06:39:48,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 141 treesize of output 153 [2021-11-20 06:39:48,985 INFO L354 Elim1Store]: treesize reduction 1024, result has 9.5 percent of original size [2021-11-20 06:39:48,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 144 treesize of output 167 [2021-11-20 06:39:49,394 INFO L354 Elim1Store]: treesize reduction 1152, result has 8.6 percent of original size [2021-11-20 06:39:49,395 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 54 case distinctions, treesize of input 155 treesize of output 170 [2021-11-20 06:39:50,126 INFO L354 Elim1Store]: treesize reduction 1228, result has 8.9 percent of original size [2021-11-20 06:39:50,127 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 158 treesize of output 184 [2021-11-20 06:39:50,657 INFO L354 Elim1Store]: treesize reduction 1370, result has 8.1 percent of original size [2021-11-20 06:39:50,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 169 treesize of output 187 [2021-11-20 06:39:51,472 INFO L354 Elim1Store]: treesize reduction 1450, result has 8.3 percent of original size [2021-11-20 06:39:51,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 172 treesize of output 201 [2021-11-20 06:39:52,120 INFO L354 Elim1Store]: treesize reduction 1606, result has 7.6 percent of original size [2021-11-20 06:39:52,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 77 case distinctions, treesize of input 183 treesize of output 204 [2021-11-20 06:39:53,175 INFO L354 Elim1Store]: treesize reduction 1690, result has 7.9 percent of original size [2021-11-20 06:39:53,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 186 treesize of output 218 [2021-11-20 06:39:53,976 INFO L354 Elim1Store]: treesize reduction 1860, result has 7.2 percent of original size [2021-11-20 06:39:53,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 90 case distinctions, treesize of input 197 treesize of output 221 [2021-11-20 06:39:55,653 INFO L354 Elim1Store]: treesize reduction 1860, result has 7.2 percent of original size [2021-11-20 06:39:55,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 90 case distinctions, treesize of input 203 treesize of output 227